While we knew that there was three Windows Phone 7 devices launching today, it looks like we may also have a fourth. Sadly though, the additional device will be available only in select channels as of today. The device is the Dell Venue Pro and it is said to be coming available by way of Microsoft as of today and then by way of Dell on November 15th. The good and bad with this is that thankfully the 15th is not all that far away and the bad is that being available with Microsoft means at the retail stores, which are limited in numbers and in-turn locations. Bottom line, most who are choosing to go Windows Phone 7 with the Dell Venue Pro are going to be waiting until the 15th. With that, the handset is going to be compatible with T-Mobile and features a 4.1 inch display, 1GHz Snapdragon processor, 5 megapixel camera and portrait style slider keyboard.