Get yourself to Roswell, Ga., a suburb of Atlanta, on April 20 & 21 for the very first Apple Pop-Up Museum and Vintage Computer Festival.

This is the brainchild of two self-described computer historians, David Greelish and his friend Lonnie Mimms. Both of them are avid collectors of classic and historic computers and other gadgets. (We've featured some of Greelish's treasures before).

Greelish has been lobbying Apple to build a visitor's center at its new headquarters for all the Apple fans that will surely flock there. Apple doesn't want to, saying it looks forward, not back. So the two finally did it on their own.