I finally decided upon Linux Mint 13/Xfce for installation to a USB stick, due to its superior device detection. It didn't detect everything, but for now it'll do.
I did an informal testing of 11 distros, and scored them based on various performance criteria. If anyone is interested, see
http://pjk.scripts.mit.edu/pkj/2012/08/28/tiny-linux-distros-on-an-hp-tx2-touchsmart-laptop/
for the article.
Tristam


