For all soon-to-be and existing customers of T-Mobile, you will be able to head into your local store on September 24th, and get any smartphone or tablet for just $99 or less with a mail-in rebate. We’re talking Sensation 4G, G-Slate, and the myTouch 4G. Any device. If you were planning on becoming a T-Mobile customer, now is good a time as any with AT&T’s announcment that T-Mo’s customers will keep their contracts rates if/when AT&T takes over.

Anyone heading into a T-Mobile store on the 24th? I might see about the Sensation 4G, then just throw on the EX ROM that was released earlier. Oh yeah.