Users over at XDA have reported that text recipients are not getting the user's phone number as the callback. For example, if my number is 555-555-5555 and I text you, you get a text from string of numbers e.g. 0413243141243. One user has reported that this is the SIM number. If it's the SIM number, it sounds like this would effect 4G areas only (I believe 3G doesn't use SIM in CDMA). Can any of you confirm you're having the same problem?