Best cell phone/plan for pilots

Ben Hallert wrote:

Followup, I've got a corporate pilot friend who's looking for a phone
rec (any service provider) that he can get good weather maps on. I
think he wants more than the tiny radar GIFs, any suggestions? He's
not rich, so no $800 phones.

Treo? Blackberry? What're you guys using?

I have a Treo 600 right now. The resolution of the screen isn't good
enough for weather maps. The 650 has twice the resolution and would be
really good for that. My next phone will be Windows based. I like the
Treo's but the screen is too small. I have decided on the Verizon
XV6700. It has the bigger screen and runs Windows Mobile 5. I have WM5
on my Dell Axim and like it.