Recreating the fun of Walkie Talkies in a browser,
Like IRC but with voice, login to a channel and then press & hold the talk button and speak after the beep, everyone else on the channel hears you.
Also 'callerid' to show you who's speaking & a roster of who's online.
Oh and Ive even included the real sound effects from the old Nextel iDEN Push to Talk service in the US:-)
Built in HTML5 frontend & python backend on EC2 with Twilio & Pusher.
No CSS yet so its fugly but works.
Also its a fairly expensive way to run the call on twilio, I need to add some kind of idle mode that drops the call after a minute or so of inactivity.