Reviews of Nokia's Lumia 900 are in: Ars Technica, The Verge, Gizmodo, Engadget and Wired each have in-depth coverage of the new flagship Windows Phone.
The good points include nice hardware, an inexpensive price tag (when under contract, at least) and the attractive design of the handset itself.
The cons include a low-res display—it's only 800×480, far less than recent Android phones and the iPhone 4S—and the poor selection of third party software available to Windows Phone users.