wernotw: The Nexus does have 2.2 already, however 2.2 will eventually hit the Vibrant at which point the decision becomes clear to me. while they may be slightly behind the Nexus, the software updates will reach the Vibrant, I don't see an OTA hardware upgrade in the Nexus's future. :p but it's really up to you what aspects of the phones are most important to you. /shrug
Tony: Ya, I agree. Get the Evo! :p Personally, I like to run custom roms anyway. And 2.2 will hit the Evo soon enough... and then eventually you know it's going to get Android 3.0.. Then again i suppose from the perspective of an editor it does afford you the opportunity to review new OS releases in the future due their expedient release to said dev phone... of course with the EVO you could review 4g data....... again.../shrug lol