I got a 1gb one of these from pcworld for 15 quid and have to say its class its just a memory stick but you can put any of the programs you use on your home pc and take it with you and plug it into another pc and it will keep all your passwords and details on the stick and leave no trace of you having been on the computer, I have installed firefox on it and copied all my internet explorer favourites to it also installed everest home, foxit, trillian (msn messenger etc).
Bring the power of portable software to your USB flash drive - make it a U3 smart drive!