I have found yet another update for the USB DISK Pro software that comes with one of those Samsung Mighty Drives, The software is labeled "USB DISK Pro Security App". This version should have improved Vista compatibility.

Defraggler differs from other defragmentation tools on the market, by enabling you to quickly and simply defrag the files you want to, without having to process the whole drive. The version you will find in this topic is packed so it can run straight from your U3 enabled USB device.  

A user contibuted a U3 Screenshot grabber, much like Cropper for U3 posted elsewhere on this site. Although this program does not support any of the advanced features Cropper does, it is a usefull and “no nonsense” utillity that allows you to make screen captures fast & easy.