Lesser's exceptionally nifty project has another major advantage. Historically, touchscreens for PCs have been both expensive and rare: so application support has been correspondingly rare, and when it's available the assumption has generally been that *everything* would be done with the touchscreen (after all, it cost so much, we'd better use it).
This soon leads to tiredness and the gorilla arm syndrome.
If all you need is a cheap webcam, the impulse to drive *everything* via the touchscreen may fade, leaving it as an occasionally-useful interface for things that mice are just too damned clumsy for and that tablets are too annoying for (because they don't generally have a screen integrated into them).
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