I was a fan of the SampleTank vst for my computer, and it’s cool that it is now mobile with the iPad. SampleTank gives you 16 instrument categories. Choose drums, pianos, bass, guitars, synthesizers, strings, or percussion.
SampleTank Photos




Video: iRig MIDI in action with SampleTank and GarageBand
Features
- 4-part multi-timbral professional quality sound and groove workstation
- Expandable sound library with more than 500 instruments in 16 categories
- Over 1,000 melodic and rhythmic patterns for groove creation or accompaniment
- Included 4-track MIDI recorder with audio export
- Built-in insert effects and master reverb
- Easy-to-use, intuitive interface
- Sound and effects editing with multiple parameters
- Play interface with piano keyboard, scale-based keyboard and drum pads
- Compatible with iPhone 4S, 4 and 3GS, iPod touch 4th and 3rd generation, iPad 2 and iPad with iOS 4.3 and newer
- Designed in concert with iRig MIDI interface for iOS devices
- Free version also available
Cost: $19.99 – Link
Additional Video: Beat making on an iPad with SampleTank iOS 1.1

The Ipad is tacking over Damn…!!!
in the first video
What kind of midi controller is he playing through?