T-mobile made a number of announcements today one of which is the near doubling of their current footprint. They are also adding hotels and other venues where mobile professionals may find themselves. (I wanted to add a link, but it somehow is not on their site.) In any case, it's good news and confirms some of the trends that we are seeing in our research. We are also seeing increased interest in usage as well as willingness to pay. 3G service providers will always be able to claim more ubiquity, but Wi-Fi service providers like T-Mobile are getting ever so much closer to having networks that mobile professionals will perceive as being ubquitous to them.
A piece on T-mobile from the San Jose Mercury News.