Google App to help locate people in Christchurch quake - UPDATED

The simple tool above provides a low-tech bodge to help people locate missing friends and family in Christchurch following today's terrible earthquake. In every disaster, those on the outside all worry about our loved ones and those within all want to assuage the worries of their friends away.

Update: Some more tools for people in Christchurch and their loved ones:

* canterburyearthquake.govt.nz (information resource) (Thanks, @Tobiasopdenbrou)
* Sahana/Ushahisi instance (Thanks, Aenertia)
* Couchsurfing accommodation offers (Thanks, Aenertia)

Person Finder: Christchurch Earthquake, February 2011 (Thanks, imorgan73, via Submitterator!)