The difference is I did it by accident, so for awhile I was like "what the... damnit!" but I'm used to it now.
I like the VX revolution. The center click is fine to me, I love the scroll wheel. I'm going to get the MX revo when it drops some in price.
To go into free wheel mode on the VX it's the slide option thing on the bottom of the mouse. set the microgear option to the smooth circle and it'll be free, gear for the clicky scroll. (not sure if this was answered I glanced the thread but I didn't believe it was.
i got mine for free for because my mx1000 needs to be replaced and they shipped me the MX REVOLUTION
logitech support =:thumbsup:
they didnt even need my old one back. i actually didnt open the box yet and still using mx 1000 (i called them because it would charge to full and drain completely on normal usage in less than 24 hours. i just charge it whenever i don't use it now... i should open up the mx revolution)
edit: been using the VX REV though for the notebook, i love it.