Update: Gizmodo received a statement from Apple regarding the 3.0.1 software update:
blockquote>We appreciate the information provided to us about SMS vulnerabilities which affect several mobile phone platforms. This morning, less than 24 hours after a demonstration of this exploit, we've issued a free software update that eliminates the vulnerability from the iPhone. Contrary to what's been reported, no one has been able to take control of the iPhone to gain access to personal information using this exploit.
ORIGINAL: Apple has just went ahead and dropped the iPhone OS 3.0.1 software update for all users to grab directly from iTunes. Still no mention on Apple's site of what exactly this update includes besides the patching of the recently discovered SMS vulnerability - just don't expect much of anything else except for the possibility of some potential bug fixes.
Updated yet? Notice anything new? Not going to update? Let us know in the comments below!
As with any update from Apple, if you are currently running the 3.0 software jailbroken, do not update if you wish to keep your device in it's current state. Updating will break your jailbreak.