iPhone/iPad application

Hello, Looking for someone to develop an iPhone/iPad application. The application has to work on both devices. The application will be for backgrounds on a lock or home screen and the images will be pulled from a website. We just need to design the UI using Apple's simple SDK. Nothing crazy in terms of UI. Payment is only awarded at the end of the project or in milestones. No initial retaining payment will be made, so please take this into consideration when bidding. You must also have Skype please, so we can discuss the project on there. I am looking at a 2-3 week turn around to have it complete on both devices. Compensation and bonus are possibilities as well at the end of the project. My ideal budget is $250 per app per device. So ideally $500 total. More full-time projects after this if successful.