The Lumia 900 is available unlocked in white on eBay for £499, with an availability date of April 9th. The seller is sunnydayshopping, who has a positive rating history, and the location is Manchester, UK. Bands supported are: GSM 850 / 900 / 1800 / 1900 and HSDPA 850 / 900 / 1900 / 2100. An unlocked international version of the handset was previously available on eBay from the U.S. not so long ago for the same price.
The Lumia 900 is also destined for AT&T on April 9th, when we'll expect consumers will be able to get their hands on the device, which sports a 1.4Ghz chip, 1830mAh battery, 4.3" AMOLED ClearBlack display and 8MP shooter (with FF camera).
Three have been sold already, so be sure to check out the listing should you be interested in the high-end Windows Phone. Of course, WPCentral cannot take any responsibility for your purchases on eBay, and we always recommend caution.
Source: eBay; thanks hamza for the tip!