Now I have joined the iBorg, what apps must I assimilate?

[cheshirenoir]

 So iFans? Now I am in the Reality Distortion Field™ what applications do I need?
I have so far:
Plants vs Zombies
Civilization Revolution

What do you have and why?

(I am not interested in Facebook, and Twitter apparently won't let me create a new account since I deleted my old account)