Have you updated yet? There are a few cool new features... The enhanced home sharing is pretty cool, and the return of the orientation lock switch for the iPad is definitely worth the upgrade.
My buddy pointed me towards a new camera app for the iPhone today. I seem to have every other camera app, so at 99 cents, it was a no-brainer.
It. Is. Awesome.
It's a zen-like experience in an iPhone camera app. From the sound effects to the visual effects you can layer on the photos you take. Mix and match different textures and effects, export directly to various social media sites, whatever floats your boat.
100 Cameras in 1 (iTunes link) is available in the App Store, and as of today will only set you back 99 cents.