In this video I will cover two phones from a hardware perspective, the Nexus One running Android 2.2 and the HTC EVO running 2.1.
Retro Boxing Poster by James Davies.
Screencast: Nexus One vs. HTC Evo
Both phones are great for Flash development but I prefer the larger, more responsive screen of the HTC EVO over the Nexus One. Unfortunately the Nexus One is the only phone out right now with Android 2.2 running so if you want to use some of the new Camera features in Air for Android you will have to use a Nexus One.