You will need to create an emulation layer which makes the iPod touch software think it is running on an iPod touch much like the Hackintosh community did with PC hardware. How difficult this will be, I don't know, but I know the iPod touch (and iPhone) use approx same ARM processor as N8x0. If you're a beginning programmer this is probably not easy to achieve. Start with little hacks instead. Pick an existing project and enhance that. Be it for jailbroken iPod touch OS or Maemo, your choice.