I've constantly been receiving requests for the iOS5+ compliant version of my iOS 4-only iPhone 3G S / 4 video camera enhancers (latest, dedicated article). This tool is still unique in that it's the only GUI-based tool (read: no need for manual plist copying) to quickly and easily do the following:
- change the video bitrate to allow for, for example, long-time recordings using low bitates
- change to the special resolution of 1080*800, which does deliver considerably better resolution than the default 640*480.