And the verdict is in, its the Radar by a mile! Even though I'm a Nokia fan and would have jumped on a 900, the 710 in comparison just did not seem worth it compared to the Radar. Right now the Radar has tethering (coming to the 710 who knows when), FFC (just hooked up with an old friend back in the UK so I will use that occasionally), build (it really does feel good), and slightly bigger screen.
I have the same amount of applications and music as I had on my DVP and still have 3GB left so unless I go mad trying to shoot another Spielberg epic I should be ok for storage till the real devices show up later this year. Ultilately it feels like a decent switch from my Dell. Thanks for all the input.