Remember the cool iBand video we picked earlier that featured two iPhones jamming with a DS? We're letting you know that we've identified the one of the other applications that was used in that clip: Drummer by developer iPhone homebrew developer">MooTheCow.

As the homebrew's name implies, running it turns your iPhone into a veritable mobile drum set. MooTheCow notes that Drummer currently carries these features:

• A 15 sample Drum Pad for your iPhone / iPod Touch.
• Multi-touch. Up to 5 pads can be pressed at once.
• Animated pads illuminate at your touch.
• Play along to all your MP3s.
• Change between drumkits at the touch of a button.
• The following kits come pre-installed: Rock, Dance, Jazz 1 and 2, and Electro.
• Drumkits are fully expandable to allow you to add your own samples (see below).