[hv23]

This looks similar to what Tipjoy (ex-YC) tried a couple years ago, before they deadpooled: http://techcrunch.com/2009/04/08/micro-blogging-meets-micro-...

In line with the post that @avichal wrote the other day (http://avichal.wordpress.com/2011/11/14/build-something-peop...): why now?