T-Mobile will have 10 LTE devices available by the end of 2013, and it will also roll out “4G” service that is compatible with Apple’s iPhone. The carrier’s 4G LTE network will span across 50 markets and utilize the 10MHz spectrum to support speeds up to 72Mbps, according to SlashGear. “Our 4G network will be compatible with a broader range of devices, including the iPhone” CTO Neville Ray said on Thursday, although he wasn’t clear on whether he was referring to HSPA+ “4G,” which might be compatible with the iPhone 4, iPhone 4S and future iPhone handsets, or 4G LTE. The carrier will be shifting its HSPA+ network to the 1900MHz bands, however, which should increase compatibility with HSPA+ devices used on AT&T’s network including the iPhone. T-Mobile reported earnings for the fourth quarter on Thursday, during which the carrier shed 802,000 contract customers, a stat the carrier blamed on Apple’s iPhone.