I have the leatherman SideKick Multitool.

It's has a locking blade and Phillips and Straight blade drivers built in. It also has a file, letter-opener (can opener), and a great plier grip with wire stripper.

I carry it with me everywhere, but it's definately heavier than the skeletool.

The blade on mine is wicked sharp.. and I've managed to draw blood on myself more than once when I wasn't being very careful with it.