[Hisense Sero 7 Pro ROMs, Kernels, Recoveries, & Ot] YaKillaCJ:
The 8GB is plenty. I place only system, utilities, themes, keyboards, features enhancing and small game apps on internal memory. All games extra data are placed on my the sdcard. Trust me when I tell ya, I'm loaded up on apps that does everything. I have over 1GB left after installing all this:

Arcane Legends 1.0.7.0 (sts.al)
Candy Crush Saga 1.15.1 (com.king.candycrushsaga)
Fieldrunners 2 1.2 (com.subatomicstudios.fieldrunners2)
Freeciv 1.1.2 (pl.org.zielinscy.freeciv)
Google Play Movies & TV 2.5.22 (com.google.android.videos)
AdAway 2.3 (org.adaway)
Adobe AIR 3.7.0.209 (com.adobe.air)
Adobe Flash Player 11.1 11.1.115.17 (com.adobe.flashplayer)
Adobe Reader 10.6.1 (com.adobe.reader)
aDownloader 1.1.0.2 (com.AndroidA.DroiDownloader)
ADW.Launcher 1.3.3.8 (org.adw.launcher)
ADWLauncher EX 1.3.3.8 (org.adwfreak.launcher)
AFWall+ 1.2.5.2 (dev.ukanth.ufirewall)
Age of Zombies 1.0.8 (com.halfbrick.ageofzombies)
Air Control 3.34 (dk.logisoft.aircontrolhdfull)
Alarm 1.3.5 (com.doubleTwist.alarmClock)
AndFTP 3.3.1 (lysesoft.andftp)
AndFTP Pro 3.1 (lysesoft.andftppro)
Angry Birds 1.3.0 (com.rovio.angrybirdsstarwars.ads.iap)
Anomaly KR 1.01 (com.elevenbitstudios.AnomalyKorea)
Apex Launcher Pro 1.0 (com.anddoes.launcher.pro)
Apex Notifier 1.3 (com.anddoes.notifier)
Apollo 1.1 (com.andrew.apollo)
Apparatus 1.1 (com.bithack.apparatus)
Art Of Glow 1.0.5 (com.natenai.artofglow)
Asphalt 7 1.0.6 (com.gameloft.android.ANMP.GloftA7HM)
ATG 1.27 (hu.bakondis.atg)
aTorrent 2.0.3.7 (com.mobilityflow.torrent)
Authenticator 2.44 (com.google.android.apps.authenticator2)
Autodesk SketchBook 2.6 (com.adsk.sketchbookhd)
Bad Piggies 1.3.0 (com.rovio.BadPiggies)
Barcode Scanner 4.4 (com.google.zxing.client.android)
Beam File 1.1 (com.mohammadag.beamfile)
BlueputDroidPro 1.5.0 (berserker.android.apps.blueputdroidpro)
Bluetooth Address Finder 1.0 (com.ccpcreations.android.bluetoothmacfinder)
BofA 4.2.55 (com.infonow.bofa)
BubbleUPnP 1.6.11.1 (com.bubblesoft.android.bubbleupnp)
BubbleUPnP License 1.1 (com.bubblesoft.android.bubbleupnp.unlocker)
Bunny Shooter 2.3 (com.bestcoolfungamesfreegameappcreation.bunnyshooter)
Business Calendar 1.3.3.1 (mikado.bizcalpro)
Camera ZOOM FX 4.1.1 (slide.cameraZoom)
Canabalt HD 2.1 (fishnoodle.canabalt)
Celtic Garden Free 1.3.1 (com.dualboot.apps.celticgardenfree)
Ceramic Destroyer 1.8 (com.game.CeramicDestroyer)
Chrome 27.0.1453.90 (com.android.chrome)
CifsManager 1.5a (ws.plattner.cifsmanager)
Cogs 1.0.19 (com.lazy8studios.cogs)
COLLAPSE 1.10.9 (com.realarcade.CL4)
Color Flashlight HD 3.5.5 (com.socialnmobile.hd.flashlight)
Color Match 1.0.2 (com.droidhen.game.color)
ColorNote 3.9.20 (com.socialnmobile.dictapps.notepad.color.note)
Colosseum 1.0.3 (com.Cocosoft.Colosseum)
ConnectBot 1.7.1 (org.connectbot)
Currents 2.1.0 (com.google.android.apps.currents)
Cut the Rope 2.2.1 (com.zeptolab.ctr.paid)
Cut the Rope Experiments 1.6.1 (com.zeptolab.ctrexperiments.google.paid)
DailyHoroscope 2.6.1 (info.androidz.horoscope)
Dead Space 1.1.41 (com.ea.deadspace_na)
DicePlayer 2.0.30 (com.inisoft.mediaplayer.a)
Dolphin Browser 10.0.0 (mobi.mgeek.TunnyBrowser)
Drive 1.2.228.32 (com.google.android.apps.docs)
DroidWall 1.5.7 (com.googlecode.droidwall.free)
Drop7 1.6 (com.areacode.drop7.rev1)
Dropbox 2.3.8 (com.dropbox.android)
Earth 7.1.1.1781 (com.google.earth)
EDGE 1.92.4 (net.mobigame.edge)
EDGE EX 1.92.4 (net.mobigame.edge.extended)
ES File Explorer 3.0.4 (com.estrongs.android.pop)
EVAC HD 2.3.15 (net.hexage.evac.hd)
Exodus 1.2 (com.joko.exodus)
F-Droid 0.46 (org.fdroid.fdroid)
Facebook 3.3 (com.facebook.katana)
Fancy Widgets 3.5.5 (com.anddoes.fancywidgets)
Fancy Widgets Unlocker 1.1 (com.anddoes.fancywidgets.unlocker)
Finance 2.2.7 (com.google.android.apps.finance)
flashME 1.3.3.0 (lovetere.flashme)
Flow Free 2.1 (com.bigduckgames.flow)
FolderMount v2.0.9 (com.devasque.fmount)
FreeCell 2.0.8 (com.mobilityware.freecell)
Froad 1.0.2 (com.yoyogames.droidbughunt)
full!screen 1.6 (de.tsorn.FullScreen)
FVD 3.7.3 (it.tolelab.fvd)
Gallery 1.1.40012 (com.google.android.gallery3d)
Glow Hockey 1.2.12 (com.natenai.glowhockey)
Glow Hockey 2 1.0.4 (com.natenai.glowhockey2)
GlowPuzzle 3.0.1 (com.glosculptor.glowpuzzle)
GLWG 1.2.8 (com.rubicon.dev.glwg)
Gmail 4.5.2-714156 (com.google.android.gm)
Goggles 1.9.2 (com.google.android.apps.unveil)
Google Play Books 2.8.69 (com.google.android.apps.books)
Google Play Magazines 2.0.0 (com.google.android.apps.magazines)
Google Play Music 5.0.1052J.707098 (com.google.android.music)
Google Sky Map 1.6.4 (com.google.android.stardroid)
Google Voice 0.4.2.80 (com.google.android.apps.googlevoice)
Google+ 4.0.1.47928040 (com.google.android.apps.plus)
GPS Test 1.2.9 (com.chartcross.gpstest)
Great Big War Game 1.4.7 (com.rubicon.dev.gbwg)
GTA III 10-YEAR ANNIVERSARY 1.4 (com.rockstar.gta3)
Gun Bros 3.5.0 (com.glu.android.gunbros_free)
handyCalc 0.55 (org.mmin.handycalc)
handyConverter 1.6 (org.mmin.handyconverter)
handyCurrency 1.1 (org.mmin.handycurrency)
Hangouts 1.0.2.695251 (com.google.android.talk)
Haunted House HD 1.6 (com.dualboot.apps.halloween)
HD Widgets 3.9.5 (cloudtv.hdwidgets)
HDW: High Res Icons 1.0.1 (cloudtv.hdextras.highres)
Heavy Gunner 1.0.8 (com.com2us.HG)
Horn 1.3.2.2 (com.Phosphor.Horn.Paid)
Horoscope 2.1.0 (fr.telemaque.horoscope)
Hot Pursuit 1.0.60 (com.eamobile.nfshp_na_wf)
Hyper Jump 1.7.5 (com.camelgames.hyperjump)
Instagram 4.0.2 (com.instagram.android)
Instant Heart Rate 2.5.7 (com.azumio.instantheartrate.full)
iRunner 1.2.3 (com.droidhen.irunner)
Jelly Defense 1.18 (pl.idreams.jellydefense)
Joy2Touch 5.10 (com.poke64738.joy2touch)
Key Test 1.0 (name.boyle.chris.keytest)
Kingsoft Office 5.6 (cn.wps.moffice_eng)
Kingsoft Office 5.3.1 (cn.wps.moffice_i18n)
Kunundrum 1.10 (com.htwgames.kunundrum)
Light Flow Lite 3.8.0LITE (com.rageconsulting.android.lightflowlite)
Light Grid 5.0 - New Year 2012 (com.joko.lightgrid)
Lightning Bug 2.9.4 (com.media1908.lightningbug)
Lightning Bug - Beach Pack 1.1 (com.media1908.lightningbug.plugins.beachpack)
Lightning Bug - Forest Pack 1.1 (com.media1908.lightningbug.plugins.forestpack)
Lightning Bug - Jungle Pack 1.1 (com.media1908.lightningbug.plugins.junglepack)
Linear For ADW 5.5 (com.linear.bs)
LogiKbdPatch 1.00.1 (logitech.keyboard.hotkey)
Magic 8 Ball 2 (com.lemonpigstudios.magic8)
MAMC 1.0.2 (com.pikpok.mamc)
Mantano Reader Lite 1.2.9 (com.mantano.reader.android.lite)
Maps 6.14.4 (com.google.android.apps.maps)
MC3 1.1.3 (com.gameloft.android.ANMP.GloftM3HM)
Messenger 2.5.3-release (com.facebook.orca)
Mini Motor 1.7.2 (com.nextgenreality.minimoto)
MP3dit 1.4.3 (com.ADnet)
mp3tagger pro 1.8.4 (de.mobile.pro)
Multi Mount SD-Card Lite 2.41 (com.rafoid.multimountsdcard.widget.free)
MultiTouch Tester 1.2 (com.the511plus.MultiTouchTester)
MX Moto 1.8.7 (com.camelgames.mxmotor)
MX Player 1.7.15a (com.mxtech.videoplayer.ad)
My Beach HD 2.0 (com.dualboot.apps.beach)
MyAppSharer 1.6.0 (com.yschi.MyAppSharer)
Netflix 2.3.2 build 932 (com.netflix.mediaclient)
NFC Task Launcher 6.2.1 (com.jwsoft.nfcactionlauncher)
Ninja Fishing 1.5.0 (com.gamenauts.ninjafishingfull)
NinJump 2.0.0 (com.bfs.ninjump)
NoLED 6.0.19 (com.led.notify)
Nottach Xposed 10.0 (com.nottach.xposed)
OS Monitor 3.0.6.4 (com.eolwral.osmonitor)
Osmos HD 2.0.2 (com.hemispheregames.osmos)
Otaku Camera 6.0.4 (com.otakumode.otakucamera)
Pandora 4.3 (com.pandora.android)
Paper Camera 3.4.3 (com.dama.papercamera)
Photile 2.3 - Slide show additions (com.joko.photile)
Photo FX Live Wallpaper 3.2.5 (slide.photoWallpaper)
PieControl 2.9 (jun.ace.piecontrol)
Pixel Rain Live Wallpaper 1.2.4 (gilleland.software.pixelrain)
PlanetScapes Free 1.12 (com.radiantwalls.planetscapesfree)
Poweramp 2.0.9-build-529 (com.maxmpz.audioplayer)
Poweramp Full Version Unlocker 2-build-26 (com.maxmpz.audioplayer.unlock)
projectM 3.9 (com.psperl.projectM)
Puffle Launch 1.3 (com.disney.PuffleLaunch)
Quell Reflect 1.71 (com.fallentreegames.quellreflect)
QuickPic 2.9.4 (com.alensw.PicFolder)
Radiant Defense 2.1.3 (net.hexage.defense)
Random Mahjong 1.2.1 (com.shoecakedroid.RandomMahjong)
RealCalc 1.7.3 (uk.co.nickfines.RealCalc)
Ringdroid 2.6 (com.ringdroid)
Riptide GP 1.6.2 (com.vectorunit.blue)
Robotek 2.7.3 (net.hexage.robotek.hd)
Roll in the Hole 1.0.6 (com.chillingo.rollinthehole.android.aja)
Ruzzle Free 1.5.46 (se.maginteractive.rumble.free)
Samurai II: Vengeance 1.0 (com.madfingergames.SamuraiII)
Search Light 1.3 (com.scottmain.android.searchlight)
Season Zen HD 1.8 (com.dualboot.apps.springzen)
Sentinel3 1.2.7 (com.Origin8.Sentinel3)
ShadowGun 1.3.5 (com.madfingergames.shadowgun)
Simple Last.fm Scrobbler 1.4.5 (com.adam.aslfms)
SkyDrive 1.1 (com.microsoft.skydrive)
Skype 3.2.0.6673 (com.skype.raider)
SManager 2.8.2 (os.tools.scriptmanager)
Smart App Protector 5.5.0 (com.sp.protector)
Solitaire 2.2.4 (com.mobilityware.solitaire)
SoundHound 5.3.2 (com.melodis.midomiMusicIdentifier.freemium)
SpeedView 3.1.4 (com.codesector.speedview.free)
Spider 2.1.5 (com.mobilityware.spider)
Spirit 2.2.8 (com.jakyl.spirithd)
Sprinkle 1.7.2 (com.mediocre.sprinkle)
Steampunk Skull 1.1.1 (com.ratana.jazzcat.steampunkskull)
StickMount 2.20 (eu.chainfire.stickmount)
StopWatch & Timer 1.26 (com.sportstracklive.stopwatch)
Street View 1.8.1.2 (com.google.android.street)
Stupid Zombies 1.9.9 (com.gameresort.stupidzombies)
Sudoku Free 9.0.2.2 (com.icenta.sudoku.ui)
Super Artist 4.3 (tipitap.coloring)
Super K.O. Boxing® 2 2.7 (com.glu.android.skob2)
SwiftKey 4.1.3.149 (com.touchtype.swiftkey)
Swype + Dragon 1.5.6.16934 (com.nuance.swype.dtc)
Symphony of Colors 1.3 (com.maxelus.colorslivewallpaper)
Tab Reload 1.5.2 (mobi.mgeek.tabreload)
Tablet Remote 1.6 (com.tournesol.tabletremote)
Tablet Talk 1.8.3 (com.apdroid.tabtalk)
TabletTalk OEM Theme 1.0 (com.tabtalk.theme.darkoem)
TabletTalk SimpleBlue Theme 1.0 (com.tabtalk.theme.simpleblue)
TDKR 1.1.3 (com.gameloft.android.ANMP.GloftKRHM)
TegraZone 2.8.2 (com.nvidia.tegrazone)
Temple Run 1.0.8 (com.imangi.templerun)
Terminal Emulator 1.0.53 (jackpal.androidterm)
Thumb Keyboard 4 4.6.3.00.151 (com.beansoft.keyboardplus)
TileStorm 2.0.0 (com.jakyl.tilestormhd)
Titanium Backup PRO 1.2.3 (com.keramidas.TitaniumBackupPro)
TNTBF 2.2.8 (com.yoyogames.droidtntbf)
Translate 2.7 (com.google.android.apps.translate)
TuneIn Radio Pro 7.3 (radiotime.player)
TV Remote V 1.5 (com.hisoversearemote)
Twisted Colors 1.10 (com.maxelus.twistedcolorslivewallpaper)
Ubuntu One Files 1.2.7 (com.ubuntuone.android.files)
Unified Remote 2.9.1 (com.Relmtech.Remote)
USB Host Controller 0.44 (hu.sztupy.android.usbhostcontroller)
USB OTG Helper 6.5.1 (net.shajul.usbotg)
USB/BT JoyCenter 8.10 (com.poke64738.usbjoy)
usbSharer 1.7.5 (os.devwom.usbsharer)
Video Downloader 0.21 (ru.lihmeh.videodownloader)
Water? 1.12.0 (com.disney.WMW)
What Phrase? 1.0.95 (com.zynga.gswf)
WiimoteController 0.65b (com.ccpcreations.android.WiiUseAndroid)
Word Search 1.14 (com.melimots.WordSearch)
World of Goo 1.1.1 (com.twodboy.worldofgoofull)
XBMC 12.2 (org.xbmc.xbmc)
Xbox SmartGlass 1.5 (com.microsoft.smartglass)
Xposed Tweakbox 1.4.0 (de.robv.android.xposed.mods.tweakbox)
YouTube 4.5.17 (com.google.android.youtube)
YouTube Remote 3.1.0 (com.google.android.ytremote)
ZENONIA2 1.0.5 (com.gamevil.zenonia2)
ZENONIA4 1.1.4 (com.gamevil.zenonia4.global)
µTorrent 1.16 (com.utorrent.client)