I purchased a iPhone 5 today locally only because the deal was just too good to pass on. However, the phone was issued from a local CDMA carrier. I have a signed contract with AT&T and I've been reading for hours on the A1429 device and it's capabilities with both CDMA & GSM. However I haven't seen where anyone has actually used the A1429 model on the AT&T network yet, even though I've read that it's possible, but you won't get LTE speeds, only HSPA+. Question is, has anyone tried this or will I just need to resale this phone and not worry about getting my AT&t micro-sim trimmed to a nano?