Apple today updated its Apple Store apps for the iPhone and the iPad, adding some minor enhancements to both apps. The iPhone version has gained improvements to In-Store Notifications, allowing users in the United States to view their notifications within the app and and on the lock screen.Improvements to in-store notifications, including ability to view notifications in the app as well as on Lock screen. (US only)In-store notifications were added to the Apple Store app back in December, when Apple began rolling out its iBeacon system designed to give consumers more information on products while browsing within Apple retail locations. Notifications include information on online orde