Until late last week, if you wanted to use the potentially cable-TV-replacing video streaming service Joost, you had to have friends. But now anybody can watch Joost online from dusk until the dawn and beyond, because Beta 1.0 of the P2P (peer-to-peer) video service just hit the streets. The good news? The company’s just about gotten it right after umpteen betas, and it’s looking good. However, it remains to be seen whether Joost techies have figured out how to scale the network without crashing it.