[Sony Xperia P, U, Sola, Go] Smartphoner:
Summary!!!

This post is to add up all the tips and tweaks on this thread...

- All that u need to know before u begin : http://xdaforums.com/showthread.php?t=1526866

- Button sensitivity : Sliding your finger over the capacitive buttons instead of pressing on them will give you high accuracy.

- Battery monitor : Battery notifier pro or Badass battery monitor or Battery.

- Screenshot : long press power button, last option in the list

- Battery improvements :

1. Replace live wallpaper with still ones

2. Settings -> Network Settings -> Mobile Network -> Network Mode -> ( select either WCDMA only OR GSM only modes )

3. Kill unnecessary apps using ram (rooted devices)

4. Reduce screen brightness to 30%

5. Disable bravia engine (if not needed)

6. http://xdaforums.com/showthread.php?t=1536332

- Code : For services => *#*#7378423#*#* (*#*#SERVICE#*#*)

- Settings' shortcuts in the status bar (without rooting) : Quickpannel (best but for ICS and not free), Widgetsoid or Quicksettings by APS. For rooted ones .... http://xdaforums.com/showthread.php?t=1594947

- Vibration alerts for calls : Call vibrate

- Gradual increase of incoming call tone : Gentle Incringing

- Good ol' Timescape widgets : http://xdaforums.com/showthread.php?t=1549045&highlight=timescape

- Try not to remove pre-applied screen protector (shatter proof) as it protects phone from shattering on impact and also from scratches, keeping it doesn't affect sensitivity that much. No need to install another one on top! That's what happens if u remove it .... http://xdaforums.com/showthread.php?t=1620834

- BUY a reliable cover or case .... http://xdaforums.com/showthread.php?t=1534661

- File transfer through WIFI : Wifi file explorer pro (brilliant)

- Fonts : Font changer and Font installer (rooted devices only)

- Some utilities for better interaction preferred by some users : Quickpic - ES FileExplorer (better than Astro) - Sms pro - Dolphin HD (browser) - Opera mobile - Go taskmanager - MyPhoneExplorer - X-Plore - Samba Filesharing - File Expert - OS Monitor - Weather Bug - Go Locker - Swich Pro 2.0.1 - Myprofiles - Swipepad - Tweetbot - Widget Locker - Screenoff - Llama - DicePlayer - 3g watchdog - Juicedefender - Picsay pro - Frame grabber

- Music player : in the standard music application, go to settings and use "custom equalizer", u could be able to edit tag info for songs directly in it. When playing music with stock Music app and Sony original in-ear headphone is plugged in, if you press the button near the microphone (used to answer call), music will stop playing, press again, it resumes playback, press quickly twice while playing and it will play the next piece, press quickly trice and it will play previous one.

- Press and hold the "Menu" button; keyboard will come up for quick search on home screen

- Mute ring and vibration : Power button (should hang up call if selected from accessibility but doesn't function) and volume buttons

- On the lock screen : Slide the clock to the left to get the music player widget, slide any notification displayed to the right to launch it

- NFC info : http://xdaforums.com/showthread.php?t=1544570&highlight=nfc

and other links ...

http://www.nfcworld.com/nfc-phones-list/

http://www.google.com/wallet/

http://www.nfc-forum.org/home/

http://www.youtube.com/watch?v=88onblp44lU

Thanx to the OP and the participants in the thread for the info!