Most importantly, get something like
ES File Explorer
Or another file system app that lets you explore phone and SD Card folders, create new folders, copy/paste, etc.
Other than that...
QuickDesk
Allows you to access shortcuts/widgets by double tapping the 'home' key and will overlay in just about every application.
Spare Parts
Allows access to a few features that would be nice if was included with phone
Trapster
Plus it's important to let people know about some features of apps already on phone:
"Maps" (Google Maps)
Basic stuff like directions and allows a sat map overlay and your position. Advanced stuff like layers that show current traffic conditions and latitude. Latitude is an app where you can add a layer to show where all your friends are if they also have latitude and are let to broadcast location.
"Voice" Google Voice
Read through the documentation to find out all the cool things it does.
That's it for now. Will tell you when I learn more.
