Spinning a plate on a stick is impressive, but if you try to spin three at once then you'll just end up digging porcelain out of your face.
This probably means you can customize your ODST based on the squad. Probably nothing major though, most likely all you will get to do is change the color stripe on your helmet and your chest plate. Also, this would probably only apply to Firefight.
I thought it was an alright speculation at least.
[Edited on 06.04.2009 2:49 PM PDT]