iDOS/DOSPad is based on DOSBox, version 0.74. DOSBox is a DOS-emulator that uses SDL-library which makes DOSBox very easy to port to different platforms. DOSBox is developed by DOSBox Team. Visit http://www.dosbox.com for more details.
The goal of DOSPad is to make DOS game playing enjoyable on iDevices. That means, we need to provide smooth game control on touch screen and to improve DOSBox performance on embedded system. We still have a long feature list, so expect more updates coming in future.