Hi all, I am a newbie to mac world. I am trying to develop a shopping application in iPhone. I didnt find any such application among sample codes. I just want to know what kind of design, from UI/memory/performance point of view, that i should adopt for my app? The requirements for my app, are quite like some shopping sites, which is having 1.shops->category->sub category->product->product details... 2.shopping cart->customer info->billibg->shipping->place order etc... I almost done the UI with tableviewControllers for navigation like above.. Is there any app so that i can refer?