Community Calendar +iphone app

I am in need of a Community Calendar script. This is an Event Calendar where a user registers and then posts an event by date This needs to share registration with existing phpmotion video script and twitter cllone The display needs to be clean and pleasant to look at and allow multiple events per day The admin needs to be able to edit /delete users and add/edit delete events Design will be simple as it will be iframed or inserted as a variable via php More full details and questions can be answered on request. Please do not post "we can do it" I need examples of past work no generic "we are the best" -- they will be ignored Max Budget: $150 (OTHERS IGNORED) Timeline: 7 Days