Today Shizzow, announced the public launch of a location-based friend finder where you can declare your location, and it will notify all of your friends so that they may come join you for a drink or a cup of coffee.
Shizzow (FAQ and blog), is a location-based social service designed to help build relationships through face-to-face interaction. It has been in private beta since August 2008 with invites open only to a limited number of people in Oregon, California, and Washington. Anyone in the United States can now sign up for Shizzow with no invite required.
Posting can be done through a mobile interface, a Google Gadget or the Shizzow web page. There’s some IM and SMS integration as well.
The Shizzow API has been in private beta since January 11th. Developers have been writing new applications for Shizzow including applications for the iPhone, Android, websites, and more. Many of the applications are still in alpha and beta phases, but you can try them out by visiting their stay connected page.
Twitter was launched at SXSW in 2007. In 24 hours it was huge.