Just to alert students that you'll be able to get Windows for £30 for a limited time from 30th September if you sign up for the offer using your University email address. There are more details here: http://www.microsoft.com/uk/windows/studentoffer/default.aspx. I used Windows 7 for a few months, and I have to say that it was a lot easier on the eye than Windows Vista (there's a thorough technical evaluation for you!), and, apart from a couple of specific driver problems, very stable, so if you've a fairly modern PC this will be well worth it.
We've just added an incoming SMS number to our text messaging service. We're going to build a few proof of concept applications showing various ways it could be used, for example as an voting system, and as a way of gathering feedback either in real time or not.
If you've got any ideas or example of similar use then get in touch.