According to Gizmodo, that day will be Friday, Sept. 5th. It should be noted this isn't the first date the 910 has "received;" an earlier rumor said the UMPC would show up on Aug. 22nd.
Problem is, there's yet another date running around the Web: according to Box.net, which makes OpenBox, one of the preinstalled apps (AKA crapware) on the UMPC, that date is Thursday, Sept. 4th.
Still with some of the support documentation showing up online, it's definitely gotta be soon and either way, it is.
Reported by Tech Ex