To all users of Glossy/Glassy screens who would like to "convert" them to provide a matte finish there is one additional and just recently released product in the market - Here is the link : http://www.radtech.us/Products/ClearCal-Displays.aspx
Unsure if this product excels where other similar products have some weakness ( i.e. makes the view grainy, unable to use a color calibration device, etc. ), but maybe we are getting close to a matte finish !
Fingers crossed !