Thinking of purchasing a PPC-6700 (Sprint)

[Bantis]

Hey guys, first time poster here. I'm on Sprint right now, with a Samsung A900. I love the phone, but to say I've outgrown it would be an understatement.
I've wanted a PDA phone for a while, so I started looking into it, and it SEEMS like the PPC-6700 would be my best choice on Sprint. Anyone have any thoughts on it? My only fear is its age in regards to support, but who knows. I know there's the AKU 3.3 hack which makes me feel a bit better.

The other phones I'm considering are the Treo 700wx and the 700p. I had a Palm T|X so I have a good amount of Palm experience, but it seems like both devices fall short to the 6700.

So yea, any thoughts? Also probably just going to purchase it off Ebay to save some money, so if you have any advice there, it'd be appreciated