RadioShack has been one carrier retail throughout the holiday madness we’ve endured from the carriers and the bigger guys. Still, they have a few offers and it would be wrong to leave them out: the LG Optimus T, the Sanyo Zio on Sprint, and the Motorola Flipside on AT&T are free on two-year contracts with their respective carriers. Throw in a free Plantronics Explorer 240 Bluetooth headset and you’ve got a decent package. The deals are just as uninspiring as the phones because these phones have been offered for free quite often as they’re aimed toward first-time smartphone users. If you were thinking about getting any of these, RadioShack would probably be your best bet for that added headset alone. [via Android Guys]