Mandriva Flash is a pre-installed Mandriva Linux distribution on a 2GB USB key. Plug in the key, take your Linux system everywhere with you, save and exchange your data in 1GB of free space!
Instead of having a LiveCD with you just so you can use Linux outside of your home/office computer or having portable versions of your must-have applications, having a full bootable linux installation on a smaller device surely makes life easier (and your internet access safer!).
This also make a good stocking stuffer this year. Give it to your geek friends or if you love your family, introduce them to Linux to wean them away from Windows. :)