She has a TENORI-ON.
http://www.videosift.com/video/The-TENORI-ON-sweetest-audio-interface-ever

Oooo, it's a virtual Tenori-On! http://www.videosift.com/video/The-TENORI-ON-sweetest-audio-interface-ever

(Almost. The real thing has more features.)

This is a dupe of
http://www.videosift.com/video/The-TENORI-ON-sweetest-audio-interface-ever

I lack *discard power at the moment, though.

Ok, very awesome indeed, but it's really just a glorified version of this:
http://www.videosift.com/video/Monome-40H-demonstrations-links-inside

... I just spent probably about 2 hours searching for that video, holy crap. Editing tags now!

Anyway, my actual point that I wanted to make was that this isn't the sweetest audio interface ever. ReacTable has that distinction.
http://www.videosift.com/video/reactable-basic-demo-1
http://www.videosift.com/video/Reactable-3-Improvisation-Demo

Tags for this video have been changed from 'monome, audio interface, open source, music' to 'audio interface, open source, samples, hip hop, sequencer, improv' - edited by djsunkid

This is another interesting audio interface (essentially, a USB box of programmable buttons) - more details at Monome website. Originally there's just the 40H (shown in the video) but a larger one has been developed since. A friend bought a 40H a few months ago...It's incredibly simple and flexible (due to the programmable open-source software) - I had a lot of fun with it!

Some more videos are on the official site (linked above), plus: Monome 40H Demo 2 and 7Up software demo for Monome on YouTube.

An incredible audio interface device created by Toshio Iwai (funded by Yamaha), the video's audio improves after a minute - the official website is here: at Yamaha's Tenori-On site. The finished device has some interesting abilities, such as wireless communication between devices for collaborative work (there's more videos on the site, above).