Weve heard plenty of rumors about a more compact version of Microsofts Surface tablet, and we might see the final product soon. The Seattle hardware giant has sent out invites for a Surface-based event on May 20, where the purported Surface Mini could make its first official appearance. The Surface Minis potential reveal is hinted at in the invite itself, which reads Join us for a small gathering. The May 20 event lines up with a previous rumor we heard pointing to a Spring 2014 release date for the miniature Surface.