Looks like tethering is a go on the Pre, albeit unofficially. (NOTE: Attempt at your own risk, Palm has already stated tethering is not allowed on the Sprint Pre)

http://www.isyougeekedup.com/palm-pre-how-to-guide-to-enable-tethering/

Anyone try it yet, and if so what speeds are you getting? And I wonder if / when official tethering support will be added?