UK phone retailer Phones4U has opened up their pre-order page for a limited edition of the Nokia Lumia 900 Windows Phone. Echoing the very limited promotional run of Lumia 800 devices, UK shoppers have a chance to pick up a "Dark Knight Returns' themed Lumia 900, with the famous Batman logo lasered into the polycarbonite casing.

Currently advertises as an exclusive to Phones 4U, the company is taking pre-orders for the device on their website. It's going to be free on contract, with monthly rates between £31 and £46 depending on your choice of plan. It's available on Vodafone or Orange. The handset comes with a character wallpapers and ringtones from the film, and exclusive packaging (which we expect to mirror the packaging from the Lumia 800 with a custom box).

There's more info at Phones 4U.