Heh, heh - thanks lanux128, for necromancing this thread. Completely off-topic, but as a result of your post, I re-read my last post here (from a year ago) and noted my comment about Maxthon and possibly trying it again. I didn't wind up doing anything in the intervening 11 months or so... until this morning.
I installed Maxthon 3 and found it to be pretty slick - it still has those glorious mouse gestures. However, I have IE9 tweaked to perfection and uninstalled Maxthon after giving it a whirl... As much as I like the mouse gestures, I've learned to live without them in the last three years. None of Fx's mouse gesture add-ons come close to the Maxthon feature and I've not found a Windows application to replicate them system wide, either. C'est la vie...