Nokia Lumia 900 would be available in UK this June, according to retail re-seller Carphone Warehouse in UK. Nokia unveiled the Lumia 900 for AT&T US on their 4G LTE network earlier this month at CES 2012.
The Nokia Lumia 900 comes with a 4.3-inch (800 x 480 pixels) AMOLED CBD display, 1.4 GHz Single core CPU, Windows Phone 7.5 (Mango), 8MP camera with Carl Zeiss lens, 720p video recording, Dual LED Flash and 1.3MP secondary camera, 512 MB RAM and 16 GB internal memory . The connectivity features include, Bluetooth 2.1 +EDR, WiFi 802.11b/g/n, LTE (Downlink 50 Mbps, Uplink 25 Mbps). It is 11.5 mm thick and weighs 160 g and has a 1830mAh battery.
You can pre-register for the Nokia Lumia 900 from Carphone Warehouse but there is no expected price or exact release date. The LTE is not mentioned anywhere in the site. LTE is just in trial stage in UK. We have to wait till we get more details at MWC 2012 next month. It is expected to be available in the US from AT&T in March.