Hackers are getting faster and faster. Apple released the iOS 4.3 GM to developers earlier today. A few hours later, hackers had figured out a jailbreak for that same release. The same actually went for the iOS 4.3 betas (1 through 3, to be exact).
After the break: how to jailbreak your iOS 4.3 device (Be warned: it’s a bit of work to gather up the required keys and patches to make the jailbreak).