choosing a PDA & telco for mobile Internet access
 

We're considering T-mobile's WebNWalk for mobile internet access from a PDA.

- has anyone any experience of this, generally?
- linking to our Linux infrastructure? (E.g. don't want to have to use their e-mail services.)
- which phone/PDA to choose? (They offer Nokia N70, or their own MDA or
SDA or MDA Vario).
- they offer 40Mb data/month in their WebNWalk 200 plan, plus 1.00/MB
over 40Mb. What's a realistic data volume/month?

But any comments on telco's, choice of PDA, etc. would be interesting.

Thanks,
Niall Mansfield