Amazon UK has a good saving on the Nest Cam and Nest Learning Thermostat until December 1 as part of its Black Friday deals week. The previous version of the Thermostat can be had for £149 from the regular £179 while the Nest Cam is down to £119 from it's regular £159.
Both are of course controllable from your Android phone or tablet and the Thermostat will come complete with a kit to fix it to your wall. If you want the optional stand you'll still have to pay the extra. Grab them both at the links below while they're hot.