Yesterday “The Wall Street Journal” (http://macte.ch/dXmxF), quoting unnamed “people familiar with the situation,” said Sprint Nextel Corp. will begin selling the iPhone 5 in mid-October. Now “MacTrast” (http://macte.ch/invBz) reports T-Mobile will jump aboard the Apple smartphone wagon at the same time.

Quoting an anonymous source at T-Mobile, the article says the iPhone 5 will operate at 3G speeds on T-Mobile US network. Current unlocked iPhone 4 units can only operate at at 2G “edge” speeds on T-Mobile’s network, and lack certain network-dependent features, such as Visual Voicemail.

Top U.S. carrier Verizon Wireless and No. 2 AT&T will begin selling the iPhone 5 in mid-October as well, according to the “Journal.” Sprint had more than 52 million subscribers at the end of the second quarter, compared with 106 million for Verizon and nearly 99 million for AT&T. T-Mobile has almost 34 million subscribers.