The audio version of Twitter. Instead of 140 characters typing, you have 15 seconds to speak your blurb to the world. So mimick the functionality of Twitter with Voice. (in later releases, in addition to the voice, have it translated to text so that one may read the spoken word. Makes for good translation between languages).
Allow a user to select different levels of access (anyone, select individuals, one person), and allow the user to input a date/time to go back to the past to listen to all blurbs until present day. Make available over the web and also over smart phone (iPhone, Android, Blackberry). (HeyTel has an interesting app that you could also borrow ideas from). So we are allowing the user to speak into a microphone attached to a computer OR speak directly into a smartphone that is connected to the mobile [login to view URL] app. This idea is patent pending by me, btw. Let me know your bid, thank you.