Well despite my "loyalty" to Dell I too am about to give up. I had REALLY wanted to replace my Nokia 810 internet tablet.
It's beginning to smell like another Dell Axim deal - lot's of fanfare for a while, then marketing gets involved and a possibly good product goes to trash. Lot's of promise, little production.
The deal w/ AT&T looks like it's going to cost an arm for data, that 5GB cap, T-mob doesn't seem to be panning out, and nothing else is being offered.
I've found I can thumbtype on a 10" netbook, it fits into my cargo pants pocket (military style), runs windows, can dual boot to linux, has 160GB storage, and can be bought for < $200. And every carrier offers a 3G or better modem for it. And if I want Dell they offer one also.