Installing the latest (Feb 13) i386 x*tgz on two different computers caused the keyboard to lock up. Mouse continued to work, but I was not able to type anything or switch consoles. The systems involved were a Dell Precision 330 workstation (upgrade) and a Toshiba 3480CT laptop (new install to see if the problem could be duplicated). Both are several years old and had run X without problems until today.
Going back to the Feb 4 snapshot restored full functionality. It seems extremely unlikely that this could be a real bug, since nobody else has mentioned it, so I suspect operator error. Did I miss a required change in configuration between these two versions?