T-Mobile raised even more suspicion of Apple plans tonight after reports today of the carrier accidentally sending out micro SIMs to American users. Despite no shipping US T-Mobile device running a micro SIM, some customers have been getting cards that only include the perforations for the smallest size. While not directly noted in the Engadget tip, AT&T micro SIMs are usually packaged in universal forms that let users either punch out a full-sized SIM or a micro SIM depending on the hardware.