Negri Electronics actually just recently placed the Dell Venue Pro with HSDPA 850/1900 MHz bands on their web site – where you can fetch a pre-order for one. Naturally, this is one eye opener since we have heard relatively next to nothing; aside from seeing an FCC filing not too long ago about the potential of working on other networks. However, it wasn't conclusive as to whether or not it was specifically bound for AT&T – or the many others across the border like Telus, Rogers, or Bell.
Regardless, this might be the actual device in the flesh which would mean great news for AT&T customers who aren't fond of the trio of Windows Phone 7 smartphones they currently hold. As it stands, you're going to shell out $650 to fetch yourself a pre-order for the device, but there is no mention about when it'll ship.
source: Negri Electronics via Pocket Now