"It could be a real "game-changer""
Absolutely and for many reasons. The Saoudi King has already indicated that this revolution has been prepared by infiltrators. Obviously they are forced to support Mubarak, because they are on the shortlist to be the next Arab country to see an uprising. While in Egypt there is not too much too be feared from muslim fanatics, that story maybe totally different in Saoudi Arabia. Who is going to control the oil resources over there during and after a revolution.
Another astonishing feature is the role Facebook and Twitter have been playing in Egypt's revolt. It is mostly young people around their 20s that went to the street, after having networked over the internet following the events in Tunesia. Add to that the anger of people over information leaked by Wikileaks and you may call this the first revolution originating from the internet.
This could become bigger and bigger fast.