As an electrical engineering student, my mouth kinda fell agape at the 'USB gets more power closer to the PSU' comment. Then i lol'd. Realizing I, an electrical engineer, am a member of some of the worst yet most prolific programmers out there. We write device drivers, which are known to cause many if not most of kernel panics across all OS's, so really I have no room to talk here on a programming blog. Still, we fail at programming (I'm reading this blog to try to get better), and sometimes programmers fail at electrical engineering :-P (PS the power delivered to USB devices is standardized in the specification)