I saw this old Protoss demo at gt.com where the dev who played the game could pause in the middle of the game and then rotate the camera left and right, which got me thinking: is that possible in current version of SC2? Also, if there are more this kind of "hidden" abilities in the game, I'd like to know about them :D
Thanks!
Search returned 0 results, so I decided to ask now anyway...
You can rotate/zoom just like in warcraft 3 using insert, end, page up and page down.
The feature is very limited, but if you hack the code you can change the zoom/rotate limit. Currently it is a very useless feature.