[Galaxy S III Android Development] Chris_84:
Hello mates. Just wanna share with you guys my modified build.prop file. Its slightly different from original and also got the fix for contact lag in it that work pretty well in my opinion.

Edit: Hope you guys like it. :)

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=JZO54K

ro.build.display.id=Omega v36 - XXELLA

ro.build.version.incremental=I9300XXELLA

ro.build.version.sdk=16

ro.build.version.codename=REL

ro.build.version.release=4.1.2

ro.build.date=Sat Dec 22 17:07:58 KST 2012

ro.build.date.utc=1356163678

ro.build.type=user

ro.build.user=se.infra

ro.build.host=SEP-111

ro.build.tags=release-keys

ro.product.model=GT-I9300

ro.product.brand=samsung

ro.product.name=m0xx

ro.product.device=m0

ro.product.board=smdk4x12

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product_ship=true

ro.product.manufacturer=samsung

ro.product.locale.language=en

ro.product.locale.region=GB

ro.wifi.channels=

ro.board.platform=exynos4

# ro.build.product is obsolete; use ro.product.device

ro.build.product=m0

# Do not try to parse ro.build.description or .fingerprint

ro.build.description=m0xx-user 4.1.2 JZO54K I9300XXELLA release-keys

ro.build.fingerprint=samsung/m0xx/m0:4.1.2/JZO54K/I9300XXELLA:user/release-keys

ro.build.characteristics=default

# Samsung Specific Properties

ro.build.PDA=I9300XXELLA

ro.build.hidden_ver=I9300XXELLA

ro.build.changelist=742798

# end build properties

#

# system.prop for smdk4x12

#

rild.libpath=/system/lib/libsec-ril.so

rild.libargs=-d /dev/ttyS0

ro.sf.lcd_density=320

ro.lcd_min_brightness=20

ro.kernel.qemu=0

ro.tvout.enable=true

persist.sys.storage_preload=1

net.streaming.rtsp.uaprof=http://wap.samsungmobile.com/uaprof/

# Multimedia property for Smart View

media.enable-commonsource=true

#

# ADDITIONAL_BUILD_PROPERTIES

#

ro.opengles.version=131072

debug.hwui.render_dirty_regions=false

ro.sf.lcd_density=320

ro.error.receiver.default=com.samsung.receiver.error

dalvik.vm.heapstartsize=8m

dalvik.vm.heapgrowthlimit=64m

dalvik.vm.heapsize=256m

ro.hdcp2.rx=tz

ro.secwvk=220

ro.sec.fle.encryption=true

ro.config.ringtone=S_Over_the_horizon.ogg

ro.config.notification_sound=S_Whistle.ogg

ro.config.alarm_alert=Walk_in_the_forest.ogg

ro.config.media_sound=Media_preview_Touch_the_light.ogg

keyguard.no_require_sim=true

ro.com.android.dateformat=MM-dd-yyyy

ro.carrier=unknown

ro.com.google.clientidbase=android-samsung

ro.ril.hsxpa=2

ro.ril.gprsclass=12

ro.adb.qemud=1

ro.com.google.apphider=off

ro.com.google.gmsversion=4.1_r3

dalvik.vm.dexopt-flags=m=y

net.bt.name=Android

dalvik.vm.stack-trace-file=/data/anr/traces.txt

debug.sf.hw=1

video.accelerate.hw=1

debug.performance.tuning=1

ro.config.nocheckin=1

ro.media.enc.jpeg.quality=100

ro.media.dec.jpeg.memcap=8000000

ro.media.enc.hprof.vid.bps=8000000

ro.telephony.call_ring.delay=0

ro.lge.proximity.delay=15

ro.ril.disable.power.collapse=1

mot.proximity.delay=15

pm.sleep_mode=1

profiler.force_disable_err_rpt=1

profiler.force_disable_ulog=1

ro.config.hw_quickpoweron=true

ro.service.swiqi.supported=true

persist.service.swiqi.enable=1

ro.media.capture.flash=led

ro.media.capture.flashMinV=3300000

ro.media.capture.torchIntensity=65

ro.media.capture.flashIntensity=70

ro.kernel.android.checkjni=0

ro.kernel.checkjni=0

media.stagefright.enable-player=true

media.stagefright.enable-meta=true

media.stagefright.enable-scan=false

media.stagefright.enable-http=true

ro.mot.eri.losalert.delay=1000

net.ppp0.dns1=8.8.8.8

net.ppp0.dns2=8.8.4.4

net.dns1=8.8.8.8

net.dns2=8.8.4.4

sys.keep_app_1=com.android.contacts

sys.keep_app_2=com.android.phone