A huge chunk of the internet has had access to the blur beta, and recently there was a patch that raised the level cap from 10 to 15.
But, if you didn’t get into the closed beta, it is planned to become an open beta on April 6th. According to the lead designer “We basically ran out of codes, so next week we are going to go live with the whole thing publicly so anyone can download it.”
The most I’ve ever seen in the beta at one time were 1000 with about 300 people per room, except 1 with only 12. Recently the amount has dropped even more, getting as low as 36 in a normal racing lobby. The new comers will revive the races and extend play time even longer. They will have trouble winning with all the level 15 people though. Since I’m a nice guy I stopped at level 14 to give everyone a chance at beating me.