Social App

Whatsapp
Facebook (sucks by the way, and I mostly use the touch.facebook.com)
LinkedIn
MetroGram (can view/comment my Instagram friends ... cannot upload)
Skype
News

WPCentral
WMPowerUser Reader
BBC News Reader
Weave
USA Today
Bloomberg
AAWP (All About Windows Phone)

Financials

B.A.M (Bank account Manager) to manage my 32 multi-currency accounts/credit cards
Currency
Stock Plus
Paypal
M2U (very unstable)

Media

Nokia Music Mix Radio
WP8 Radio (I never managed to get connection to Malaysian Radio stations with TuneIn)
Shazam
TubePro
MetroTube

Productivity

Office
Tasks
Note +

Online Shopping

Amazon Mobile
Shop and Ship
Utilities

ConnectivityShorcuts
TripIt
Speedtest.net
Skydrive
Malaysian Airlines
Accuweather

Misc

My Prayer
Hijri Calendar
iPropertyMY
KAYAK
Kindle
Sports

ESPN ScoreCenter
FC Mobile
Football Pro '13

Games (for the kids)

Angry Bird Star Wars
Where's My Perry
Where's My Water
Ragdoll Run
RoboTek
Dredd vs. Zombies (not in Kids Corner)