I was looking at this video about using the nintendo wiimote to create a lowbudget whiteboard.
I was wondering if this would be possible to use this technique to create a "touchscreen" for the PSP
in theory all you'd need to do is to create a small "mount" to place the camera more forward in an angle so it can see the screen and a small lenscap that filters the infraredlight.
just build a small infrared pen, you could keep it smaller in size if you where to use the audioport to get the energy from the PSP's batery
All these hardware suplies are rather newb friendly afaik
all that is needed then is a plugin that calibrates the screen and is ofcourse implented in whatever homebrew that wants to use it.
it's not realy a touchscreen, but it would let you track a pen on the screen, adding somenew life to the PSP homebrew scene i think
so what do you guys think, possible or not?