It’s March 16, iPad day, meaning folks around the world – and at TechnoBuffalo – are happily unboxing their brand new retina-equipped tablets. Which did you choose? If you said the Verizon iPad Wi-Fi + 4G LTE, congratulations – you’re in possession of the swiss army knife of iPads.

When the new iPad was announced last week, people quickly began to wonder if the Verizon iteration would run on AT&T. And why not? The Verizon iPad supports the same GSM frequency bands for non-LTE networks as the version sold for AT&T, so technically it was possible if one were to insert an AT&T micro-SIM.

According to one curious user in the MacRumors forums, the theory has been proven to work. The Verizon iPad does in fact run on AT&T’s network, but only once carrier settings are updated, and only with an AT&T micro-SIM. “You must apply the AT&T APN carrier settings before this works though,” the forum user said. So if you’ve got an AT&T micro-SIM say, from one’s iPhone 4 or 4S, it is possible to get a Verizon iPad connected to AT&T.

It is important to note, however, that a Verizon iPad will be limited to non-LTE bands (EDGE, 3G, HSPA+ 4G) on AT&T, MacRumors wrote. The Verizon iPad hardware supports only the 700 MHz band for LTE to match the carrier’s technology, while the GSM version sold for use on AT&T’s network supports both the 700 MHz and 2100 MHz bands as used by that carrier.

For now, the Verizon iPad is the definition of an unlocked device, but you can bet that Apple will swiftly address this issue with an update.

[via Mac Rumors]