Like one that notifies you when someone posts on your wall, picture, etc...?
We are The Droid.
Lower your and surrender your .
We will add your biological distinctiveness to our own.
Your culture will adapt to service us.
Resistance is futile
I've started developing a native android Facebook app.. That being said its in the VERYearly stages and wont be ready for beta testing for a while yet (read prolly a month or 2 at the earliest)
Facebook chat can be used by downloading the AIM application from the market =) and as far as a better facebook application, you should try using socialite, its not on the market but there are a few threads on it =)
Twitter? Follow Me @NeverEndingXsin
Google+ Invites? Yeah i got them