Spirit, an untethered jailbreak for iPad 3.2, and iPod touch and iPhone under 3.1.2 and 3.1.3 is now live. If you want it, go grab it via the link below.
A word of warning for iPad users:
On iPad, all this is still sort of beta. Some packages in Cydia, not designed for iPad, might screw up your system and require you to restore. Be careful. (And no, Cydia's appearance is not final.)
Also, not an unlock solution. This is a jailbreak.
As always, if you don't know what any of these means, stay away.
[SpiritJB, thanks to everyone who sent this in!]