NOTE: Many of the features we will discuss are relatively new, some are ancient, but are of particular interest for projectors in an education environment. Examples of those would be:
Ultra short throw and same, with interactivity
Laser pointers and optical pointers, basic remote mousing
Pocket projectors – coming of age
PC Free presenting, including BYOD, USB presenting (media players)
HDMI inputs (or DVI) USB, DisplayLink as replacement for VGA or even HDMI,
Brightness and Color fidelity, accuracy, lumens
Wired networking and “system” (like Crestron), compatibility
Presenting Control from iOS/Android devices
Cost of operation, and ownership, lamps, replacements
Other costs (installation, warranty, routine maintenance (including filters)