I'm looking for a networked or (preferably) wireless projector that I
can use with  MacOS, Windows or (the hard one) Linux. I'd prefer a
minimum of software that has to be installed - a VNC viewer on a
projector would be beautiful, though admittedly unlikely. I'm willing
to consider "vga-to-wireless" transcievers (ie, plug a box into the
VGA port of your laptop that transmits wirelessly to the projector) or
(less good, but still interesting) small embedded computers that could
serve the same function.