From a software standpoint, I think the last thing I want my phone doing when I dial 911 is disabling hardware components, killing applications and reducing the phone's processor speed. Seems like thats ripe for the phone just locking up on me. I would much rather it just keep running in the mode it spends 99.9% of its time in.

Here are some pictures of the event http://www.flickr.com/photos/outofjungle/sets/72157600648869175/