iPhone Public Event Application

I am seeking to hire an iPhone programmer to create an application for a public 2 day event/festival. App Features: - Event Schedule - Sort or Find Events Through A Couple Search Criteria - Event Map - Sponsor Ad Banner - Event Descriptions - Facebook/Twitter connectivity for user to say they are at a specific location at the event. Data Source: - Would need a database structure developed. No option to tie into existing database. - Would like remote data to be manageable to update schedules, ads, descriptions, etc. - Would like for app to pull in new info as it is available vs, forcing user to update app from iTunes. We will supply the GUI design files as PSD or similar. We will supply all data in some format like a word doc or excel spreadsheet. Need to have completed in 30 days.