It's not the first universal remote adapter we've seen for the iPhone and, unlike the Surc IR case, you probably wouldn't want to leave this bulky add-on attached to your handset when not in use. But, the app does have some convenient features, like the ability to create custom layouts that can easily be switched based on the devices in a particular room.
So you can setup a living room profile to control your big screen and cable box, and a separate bed room one for your more modest set and a stereo. You can also create command macros that fire up multiple devices with the tap of a single virtual button. The Voomote app is available for free in the app store, but the actual IR-blasting sleeve will set you back $99.