Syntellia, the company behind popular alternative keyboard app Fleksy, is developing software that will allow the app to work with the upcoming Leap Motion Controller. Syntellia is demoing the Fleksy and Leap Motion combo at SXSW this week. Fleksy is a text-input system that implements advanced predictive text algorithms to allow users to type without looking at the screen of the iPhone or the iPad. Though it offers a traditional tap typing interface, it also supports simple gestures for space and delete. In combination with the touch-free Leap Motion, Fleksy offers gesture-based typing that can be done in the air. Air typing with Fleksy functions much like the iOS app, with error correction on the