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Carriers at odds with RIM over NFC payment data

We've already heard a fair bit about RIM's plans for NFC-based mobile payments, but it's starting to look like some of those plans don't quite line up with what the carriers have in mind. As the Wall Street Journal reports, there's a brewing dispute between RIM and a number of carriers including AT&T, T-Mobile and Rogers over just how NFC payment-related data, or "credentials," are stored, and who actually controls that data. For its part, RIM unsurprisingly wants to store the data in a secure area of the phone itself, which would obviously tie folks to their BlackBerry more than ever, while the carriers are pushing to have that data simply stored on the phone's SIM card, which would let customers move from one phone to another more easily. While things apparently haven't gotten that heated just yet, it does certainly seem like there's a bit of a fight in store -- according to the Wall Street Journal, RIM is already reaching out to banks on its own in an effort to strike some deals, while Canadian carriers have apparently been telling RIM in a "gentle" way that "you won't be doing this."