The Sony Ericsson U5i was first spotted in November by Cellpassion, and today the device made an appearance on the FCC.   The test report for the U5i indicates that it is a quad-band GSM device with HSDPA 3G, Bluetooth, GPS, FM radio and WiFi.

Unfortunately, FCC documents don’t give us any indication of what the U5i looks like.  But today’s filing does suggest that we’ll be finding out something more soon.