Smartphones are computers that happen to be able to make phone calls, and that leads to some interesting possibilities. I've been trying out the new HTC Hero thanks to the lovely folk at 3MobileBuzz who sent me one to have a look at for a week. The Hero uses Google's open source operating system Android, which is based on Linux and is optimised for smaller devices. HTC mobiles are available on many of the mobile phone networks, and they are not alone in using the Android operating system on certain models, manufacturers such as Motorola have recently joined them. The Hero is 3's first Android device and the model I looked at also has a bundled Spotify subscription (worth £9.99 per month), it currently costs £97.86 upfront with a two year contract that will cost you £35 per month, so this is toward the premium end of their range. Quite a bit of cash to hand over, but what do you get for your money?