In addition to TV show rental download support, iOS 4.1 adds the ability to take HDR photos, or a series of photos that are captured at the same time to bracket the best exposures and blend them into a single image
The update also fixes the proximity sensor bug that’s been causing accidental hangups for some iPhone 4 users, adds the ability to upload HD video over Wi-Fi, and brings Apple’s Game Center to the public for gamer social networking.
iOS 4.1 will be released next week as a free download.