Sony Ericsson W508a + AGPS = W518a?

Like Sony Ericsson? Like clamshells? Like America? Then listen up, you patriot, you: SEMC Blog is reporting that the recently-announced W508 flip (pictured) out of Sony Ericsson is already getting ready for an Americanized remix in the form of the W518a. That's kind of odd considering that SE already has a W508a in the works that packs the appropriate spectrum, but the W518a allegedly adds AGPS into the mix as well -- a compelling feature, and very likely one that's now required by AT&T for new devices in this range. Needless to say, we wouldn't be surprised to see an official launch down the road.