Blizzard's reportedly sending out extra StarCraft II beta keys to existing players so they can get their friends involved; looks as though a boost's needed to get up to that 10,000 concurrency target.
Producer Dustin Browder told us just before GDC that the beta needs to sit at about 10,000 users to make the game's match-making system "sing".
"If we get much higher than that we’ll just leave it, and if we see concurrency fall off we’ll add more keys until we get back to those numbers," the developer said at the time.
The beta went live in mid-February.
We're still without a solid date for the long-awaited RTS, but all activity is good activity. It's scheduled to ship in the first half of this year.