It didn't exactly get a rave review from us at the back end of 2010, not least for its choice of operating system, but the Sony Ericsson Xperia X8 has one thing on its side - it is an affordable Android.It's available now on the Three network for just under £100 on a pay as you go deal. Or if you want to sign up to a contract, £15 per month gets you one on the network, £25 if you want the full data allowance each month, via the much-hyped One Plan.For that, you get a Sony Ericcson-branded Android touchscreen smartphone with a 3.2-megapixel camera, Wi-Fi, GPS and Sony Ericsson's Timescape interface. Downside? That Android operating system is an almost ancient Android 1.6 and with the Xperia's record for updating operating systems, we can safely assume you'll not be seeing a new one for a while. If ever.Still, the company is putting on a brave face. Sylvia Chind Head of Branded Devices commenting: 'The Sony Ericsson X8 delivers great smartphone functionality at a very affordable price allowing our customers to make the most of our 3G network, which now covers over 97.3 per cent of the population across the UK.'