Alongside the iPhone 1.1.2 update, Apple has also released an iPod Touch 1.1.2 firmware update which is available for some through iTunes. For those who are impatient, a direct download is also available:
Early reports indicate that the new iPod Touch update provides "Add Event" functionality to the iPod Touch, confirming an email exchange from Steve Jobs who promised that edit and add calendar events would be coming in a future software update. The lack of calendar editing had been described as a "bug" by Jobs.
While the iPod Touch 1.1.2 and iPhone 1.1.2 updates are likely very similar, there may be device specific issues. Please keep comments on topic in their respective threads.