A very strong preference for the Igo for exactly the reason you said. Moreover, I have adaptors for my Treo, IPAQ and one of my cell phones to use with it. This lets me carry it all on one pack. Plus as an added benefit, lots of hotel rooms and airport lounges are a bit deficient in electric sockets in my experience, it is nice to plug a computer and PDA into the same socket. The same obviously true on planes as well