I’m working on an app originally developed by another programmer. My job is to make the interface more appealing. One really effective way I’ve found is to customize the tab bar. I’ve become very fond of iOS 6’s App Store for iPad. I was wondering what would be the best way to recreate this (for iPad)? Any help would be greatly appreciated guys!

The app relies heavily on the UITabBar, so I’m trying my best not to change this model. I’ve checked out TBTabBar, but currently it only supports the iPhone.
I have found some customisation here and here. I don’t know if it is working on iPad too, but I hope it helps to get a direction.