one-woman iphone band: "poker face"

This video dropped in my mailbox last week, and I thought it was pretty cool. Applegirl is a very resourceful YouTube musician who performs an elaborate, one-woman rendition of Lady Gaga's "Poker Face" arranged entirely with iPhone apps (four phones total, it looks like). Never mind the fact that I hate this song -- this is pretty impressive. She also does her own iPhone version of Beyonce's "Irreplaceable."