I posted this in the 9810 forum, but am also posting here since many folks may not visit there.
After getting Mecca's hybrid to run on my 9810 I ran some speed tests for comparison. I measured Mobile Hotspot, tether, and bridge using my PlayBook. Mobile Hotspot is a little buggy (sometimes shuts down inexplicably), but I think most folks will like the speeds. :)
Interesting that tethering isn't significantly faster than bridge.