See review of Pinguy OS - a Mint-y Ubuntu re-spin at http://jeffhoogland.blogspot.com/2010/07/pinguy-os-distro-review.html
I'm with Simon on LXDE - have just set my 6-year old son up with a Edubuntu 10.04LTS/LXDE-installed Compaq Ipaq desktop which seems to cope with most things despite P3&512Mb spec. Lost l33t points in that I wound up using ndiswrapper for Safecom USB wireless... He seems happy enough though with educational (and not-so educational) games. Regards, Mark
Sign hanging in Einstein's office at Princeton: Not everything that counts can be counted, and not everything that can be counted counts.