Over the last few days, we've been telling all and sundry that — since the Library of Congress decided jailbreaking of phones is okay — you should dash out, fire up JailbreakMe.com, download ultrasn0w, and basically turn your iPhone's OS into scrambled eggs.
Ease up a sec, Hoss.
If you've never jailbroken your phone in any way, shape, or form, it would behoove you to sit tight for a couple of days. Reason? We here at iSmashPhone.com, along with others, have been having problems with JailbreakMe, to the point where we've had to restore our phones to their un-JB'd status. So unless you have the patience to break/restore/lather-rinse-repeat, hold off on taking a digital machete to your shiny (expensive!) little toy.