This has to be one of the most amazing things I've seen on the interwebs!
Jeral Poskey has created a Google Earth tour that re-enacts Flight 1549's crash into the Hudson River. The re-enactment includes sound from eight audio tapes released by the FAA between pilots and controllers. To view the tour properly you need to have installed the latest version of Google Earth (Google Earth 5.0).
Jeral explains how he created the tour on his website da Vinci Global Services. The video of the re-enactment below was created by videoing my monitor, so is quite poor quality.
Flight 1549 Reenactment from Keir Clarke on Vimeo.
The Short Flight of 1549