I dislike glossy screens because they can be annoying sometimes. But most of the time I barely notice it and the reflection is actually useful in bright sunlight where matte is just washed out. But I do prefer matte for photo work.
Ok but here's my thing: glass is even more reflective than the MB screen IMO-and that could cause problems.

Also the huge 16" piece of glass is unnecessary!!!!!!! Glass is recyclable, but so is a thin Al bezel. The 15" MBP is actually HEAVIER .1lbs!!!! A think bezel is lighter, allows for a matte display, and is probably cheaper.

Then I don't like the black look. Yes, I know apple wants a unified mac look, but I was also more fond on the what iMacs. I've never been fond of black glass, why not just aluminum and a matte display? Or the option as you could do glass over Al. This would be very is for the iMacs and pretty easy for MB/P.

Personally there are some things I hate. I will not buy the 24" display!!! THERE'S NO FIREWIRE DARN IT!!!!!!!!!!! And the MBPs are missing a port! Still no graphics mem in MB, though an improvement. Also I wonder if the no mouse button will deter people. But I very rarely use mine!