While certainly not as exciting as the 1.1.3 firmware, Apple has just released version 1.1.4 of their iPhone firmware.

This update:

• Fixes a bluetooth bug, which was introduced with the 1.1.3 firmware.
• Fixes an SMS ordering bug (text messages didn’t always stay in the right order).
• Some people are reporting better signal strength.
• Support for O2 wireless in Ireland and T-Mobile in Austria.

Unless you want to jailbreak your phone, this sounds like an update worth getting.