Encore developed the hardware and the IISc guys developed or rather put together the software, there are just a few instances where the IISc guys have litterally written the device drivers (I had
IISc developed IML, the IML browser, text to speech converter for
hindi
and kannada, integration of tts into IMLI, tapatap and some other
user
space stuff. All system level stuff was taken from linux development with minor changes.
The IML browser (Imli) is actually "Chimera"... Actually I don't think they "developed" tapatap, but rather implemented one of the free handwritting recognition algorithms.
I think most of the System level stuff (including the kernel) were taken from the StrongARM Linux port (I think that was the LART project)
But they sure did a great job of implementing those technologies, better than re-inventing the wheel :-)
~Mayuresh