To say we've been patiently waiting for the Xoom's promised 4G upgrade would certainly be an understatement. It looks like those of you counting on blistering speeds this summer are flat out of luck, as the LTE overhaul apparently won't begin until fall. Droid-Life's got a snap of a seemingly official Verizon memo, which alleges that the FCC-espied gratis upgrade will apparently land sometime in September. Also mentioned are links to Big Red's website on how to backup and package one's slate for its eventual voyage back to Moto's mothership. Hop on over to the source to see the full communiqué, and peep the more coverage links if you enjoy being prepared entirely too far in advance.
Update: A tipster has kindly sent us a copy of Verizon's email. It's looking pretty official, folks.
*Verizon has acquired AOL, Engadget's parent company. However, Engadget maintains full editorial control, and Verizon will have to pry it from our cold, dead hands.