I also think the agreement has more to do with costs than anything else. In addition, Jasper has recently been making their software integration available directly to the telcoms, so my guess is that they're still involved indirectly. Garmin will also be using AT&T for the 1690 live (AT&T's gotta be cheaper with Garmin figuring to profit at $5 a month for live services), but both the TT and Garmin Live devices appear to have an agreement for Edge delivery only and
not 3G. That would kind of indicate to me that AT&T isn't planning for any of these connected pnd's to use much bandwidth/data. Rolling out HD traffic under the existing agreement doesn't seem likely to me. (What is HDTraffic anyway?) I'd also be pretty shocked if location data flowing back from Garmin live devices to AT&T will be sent to TomTom for their exclusive use.