Eagle-eyed Maximus has spotted the Sony Ericsson Z250 passing the FCC hurdle. Apparently, both version “a” and “i” were approved, although we’ve no doubt it’s the first one that is interesting to our U.S. reader. And while nothing is still confirmed, it’s kinda safe to bet we’ll see this stylish low-to-mid range clamshell hitting the AT&T’s shelves just in time for Christmas. Basically, it’s a music-enabled device with basic phone features, plus Bluetooth and a VGA camera…