Although phone cameras are improving all the time, one area that seems to be ignored or forgotten about by manufacturers is their video recording functionality. While it makes sense not to spend too much time implementing higher than HD resolutions (after all, they're not going to be compatible with the vast majority of TV sets), there's definitely a market there for people who want to record top quality footage for use in projects that will be displayed on computers, as well as potentially 4K TVs once they've become a little more prevalant.
Thankfully, there are plenty of people out there who feel the same, and the first app to unlock enhanced video recording capabilities from a native camera is Ultrakam, an app currently available only for iOS devices that enables users to record at 2K resolution (that's 2,240 x 1,672 pixels) at 24 frames per second.
Needless to say, recording such big video files will make short work of consuming your available storage space, so even if you to have need for 2K video, it's probably not going to be all that convenient given the frequency at which you're going to have to transfer the captured data over to computer (to give you an idea of the kind of file sizes you'll be dealing with,a minute of footage will take uparound 3GB of space at the highest settings).
Nevertheless, those of you who own a compatible device and would like to check the app out can find it on the Apple iTunes App Store priced at $6.99.