Facebook Disaster Funtions

I found this today:
http://digitallife.today.msnbc.msn.com/_news/2012/02/29/10541128-faceboo...

This app appears to allow anyone who can access facebook to let their friends and family know they are OK. I think this is a great tool. Since most of my family are on Facebook it has the potential to reduce demand on phone networks.

Of course this is dependant on having access to the internet either through a computer or through your phone. There is a lot of potential though.