IPod game steps towards entering the video game handheld console market. Even video game magazines like GamePro and EGM have reviewed and rated most of their games. The games are in the form of .ipg files (iPod game), which are actually .zip archives in disguise. When unzipped, they reveal executable files along with common audio and image files, leading to the possibility of third-party games. Currently, Apple has no publicly available software development kit (SDK) for iPod-specific development. The iOS SDK covers only iOS on the iPhone and iPod Touch, not traditional iPods. As of October 2011, Apple has removed all the
IPhone to its customers on its website, acknowledging the effect that old batteries have on the iPhone's performance. The company offered $29 battery replacements as a solution. The first-generation iPhone and iPhone 3G have a fixed-focus 2.0-megapixel camera on the back for digital photos. It has no optical zoom, flash or autofocus, and does not natively support video recording. Video recording is possible on the first-generation iPhone and iPhone 3G via a third-party app available on the App Store or through jailbreaking. iPhone OS 2.0 introduced geotagging for photos. The iPhone 3GS has a 3.2-megapixel camera with autofocus, auto white balance,