Yes the pi hate's USB devices ....
If there is even a tiny amount of feedback power coming from hubs or the devices the pi behaves crazy ....
Until minepeon i couldn't even get my Ztex boards to work with the pi. It constantly froze and was unreliable as hell.
Do you think BeagleBone behaves better relating to USB hubs ?
"The Anker Hub linked here DOES NOT WORK with the Pi or Beaglebone"