At the Press Exhibition in Caesar's Palace, Sunday night before CES, I spoke to one of the TomTom people who were showing off their GPS units. I let them know that I was told by TomTom Support, there is NO bluetooth functionality between a blackberry Curve (never mentioned which carrier, although mine is AT&T) and a ONE XL-S. They said they'd look into it, and didn't know why there wouldn't be!