One of the issues with most UMPC devices is that they have no CD/DVD drive. This complicates matters when you need to install software and more importantly when you need to recover the machine.
I have just spent the last hour (or so) making recovery disks for the Sony VAIO UX1XN from a protected part of the hard drive. This should free up some 6GB of hard disk space, which will be useful as the flash based hard disk drive is only 32GB to begin with.
Does mean that I will need a DVD drive to recover the VAIO if it ever needs recovering.