TuioPad is an open source TUIO tracker for iOS devices such as iPad, iPhone and iPod touch that allows multitouch remote control based on the TUIO protocol. The application is available free of charge on the App Store and can be used in conjunction with any TUIO enabled client application. Its source code is also available under the terms of the GPL and therefore can be freely used for the creation of open source TUIO enabled mobile applications.
there is also an android port –
Released under the GNU GPLv3 License