I've been told by the TT Geek squad (that's the next level up past your normal flip chart customer support) that TT and AT&T won't play together to allow a data link. I was told it was a crap shoot as to what model of phone you used, I am using the Motorola Q 9h with windows mobile 6. I figured it might have to do with TT uses Linux OS and I'm using Billy Gates OS. The Geek-ett I spoke with said that TT (Euopean based) works fine with all the EU countries, in the USA each phone carrier has different standards and TT hasn't accomadated all those issues. Has anyone been able to establish a data link with AT&T and their TT?