Ipad Gallery (objective C)

Hi, I need one gallery application (objective C - Ipad), like the image attach, and the structure of classes could look something like this: [ service ] PortfolioDataService - used to load the JSON from remote web server PortfolioDataParser - used to parse the JSON into model objects [ model ] PortfolioPage - model object used to represent one page of the scrollview PortfolioImage - model object used to represent items in a PortfolioPage ( 6 per PortfolioPage) [ view / controller ] PagesViewController - built with a dynamic number of pages (according to the JSON) GridViewController - contained as a page in the parent PageViewController (as per your mockup, the JSON would contain 4 pages, but this could be changed dynamically according to the JSON) See image: - All albums tab (this first or root tab is to display all images (include in all categories) - Portfolio/category (n) tab (only display the photos associated with that category) - Each image should have one title/label (ex: text "letters" is the name of the image). When I press one image, should open full image with one scroll view to access all images…