Mike Miller wrote: > On Wed, 30 Mar 2011, Ed C. wrote: > >> Otherwise it means there's app for turning your smart phone into a >> burning lens. > > I like that idea. This makes me wonder -- do any smart phones have > built-in laser pointers? I could use that now and then. Of course > you'd want it to be definitively inactivated most of the time or > "eye-phone" could earn a very negative connotation. > > Mike > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > Apparently they have had, at least experimentally. Whether it was visible light for pointing at paper or an activating beam for pointing at photodiodes or photoresistors isn't clear: http://hci.rwth-aachen.de/materials/publications/ballagas2005d.pdf Ed