ArtGALLERY for iPhone

Description I am looking to create an iPhone app that displays pictures of my artwork, that can be clicked on to show as a wallpaper. This will be a paid for app, with in app purchase to get more images added to the gallery. Upon running the app the user will be greeted by a picture showing the name of the app and then the user will be taken to a menu listing the Categories of work in alphabetical order along with a small sample picture. When the user makes a selection the next menu will display all the pictures available in tile format. Next the user can randomly select any of the picture he wants to view full size (At this point it needs to be watermarked to stop screenshot being used) and then also have an option to view them one by one as a slideshow or using swipe motion. In otherwords when I say I want the app to be fluid I mean that the user should be able to go back and forth between different views and browse the app comfortable without being overwhelmed or without the app freezing up etc... It would also be nice to have social networking links so that when you take an image, it can be posted to Twitter and Facebook advertising the app, and our website? (If this is possible) The app must look at our hosted server for updates to pictures so that we can add to the gallery at any point. Please ask any questions that you are unclear of. Additional details will be given to the winning bidder. I would like to see a sample video of the app performing basic functions before I make full payment.