When Apple re-released a number of iPod 5G games virtually unchanged, but in a format compatible with the iPod classic and iPod nano, it sparked an uproar by forcing customers to pay again if they wanted the same titles to work on newer iPods. With the release of the App Store, this has happened again: developers are re-releasing last year’s titles for the iPhone and iPod touch, but this time some of the games actually include significant improvements…