Orchid time-lapse

We got an orchid at Trader Joe's this weekend. This flower opened most of the way before we thought to start a time-lapse, but here's what we caught.

This video spans 20 hours. I'm using the xyster.net TimeLapse app on an iPhone 4, with the on-camera flash as the primary illumination.

Update (4/23/2011):

Saw another bud just starting to open and started a longer time-lapse. Same settings as before.