Rev Points are not currently used for anything in particular, but they might be worth something in the future (currency, or something like voucher points, etc.).
They are basically points for things on RRR, and we call them Revolution Points.
For now, think of them as prestige points, until later on when they are used for other things. =]
You can earn Rev Points by:
- being involved in any RRR-hosted event (competitions, contests, etc.),
- contributing resources to RRR (including exclusive resources; note that scripts are resources),
- submitting useful/complete tutorials in any of the forum tutorial sections,
- and sometimes there are special ways to earn Rev Points that aren't announced (surprises).
So primarily, your contributions to the site and activity in events on the site will almost automatically earn you Rev Points. =]
I've also added this information to the FAQ