This is just a quick heads up for those trying one of the *buntu 7.10 flavours. Even if you are using the latest and fully official release you may find yourself getting a message saying that 'this version can be upgraded'. It is a bug and has been reported, by myself and many, many others. I expect it will be sorted pretty quickly judging form how many are reporting it.
Other than that Kubuntu 7.10 is really quite nice