I'm building this for a couple key reasons: 1. I wanted a better way to directly get social content on my own website as I blogged less and less and used social media more and more. 2. I wanted to develop an open API protocol for social networking communications. The mobile app uses this protocol to communicate with WordPress sites that use the plugin component but ultimately any web server implementing the protocol could work.
I'm actually now looking for people interested in beta testing both the WordPress plugin and mobile app so please sign up on that page if interested. I'm also keeping a blog with more information on everything http://blog.postcardsocial.net/
Great idea for a HN thread! I'll visit frequently and comment on others' shares.