iPhone 3.0.1
Apple today released firmware 3.0.1 for the iPhone. This update doesn’t appear to do anything other than fix the recently found SMS vulnerability. Apple has posted a support article regarding this security update.
And, for those of you interested, reports on Twitter are that it doesn’t break the tethering hack. So, unless you are jailbroken, feel free to hit “Check for Update” in iTunes.
Update 10/16/09: iPhone Tethering May be a 2010 Thing