MobileContentToday nabbed the latest version of Real Racing (1.23) which is supposedly updated and enhanced with iPhone 4 support. Using the gyroscope and the iPhone 4′s enhanced resolution, there is apparently a very noticeable difference.
When compared to an iPhone 3G, the differences are simple to spot right away. The graphics are much crisper and the gameplay is much smoother on the 4. While they were unsure if the enhancements were due to the gyroscope or due to the iPhone 4′s faster processor is unknown, it’s definitely a much better experience on the iPhone 4.