Apple today rolled out a few minor tweaks to its online store (via Macotakara), making it easier to navigate the store on touchscreen devices such as the iPhone and iPad. One change involves a new sliding navigation bar for product categories. From the main store page, once users select one of the four main shopping categories (Mac, iPad, iPhone, iPod), the navigation bar at the top of category page showing various products and other topics within that category can now be slid back and forth with the touch of a finger. Users on non-touch devices can slide the bar by clicking on arrows at each end. A second change involves product search results, which had previously been
