Dan,
thanks for your excellent points, all of which I would love to implement.
I am currently talking with Nokia and trying to find out how we can take this further

As for the camera view, its just a simple test, but if you press the +- zoom buttons it does just that, and you can see multiple or a single view.

All I wanted to do was see how things work.

From a personal perspective, I am not knowledgeable in all areas and if I sat down and worked specifically on one area (maps/books/sketching/ui) then I would not have got this far.
Its enough to get the ball rolling and hopefully start to give people tools and ideas for their own projects.

Due to the nature of this device and the methods I have needed to implement to get the performance I can only have one running app using the XV overlay at a time, so that is why everything is together, but I am hopeful that the ideas can be pushed further back into x11 itself so all apps have this tearfree capability, but I doubt we will get that far on the current device.

Looking to the future where new hardware appears to be coming it should allow hack-free implementations of all I have done.

Its basically a rough view of how *I* would like to interact with a touch device using ideas and principles that have been rolling around in my head and in little C and VB projects for years.