David99 - pop over to the mp4bation onda sub forums there is LOADS on this and we have even made contact with several chinese modders responsible for many mods
onda are also running a modding competition in china for both UI and hardwire and software mods, so could be some interesting developments over the next month
sorry for send ing you off site but the onda sub forum is full of modding the firmware and it would be a task to add it all in here
http://www.mp4nation.net/forum/viewforum.php?f=6