The right Alt is not Alt, it's 'Alt Gr' which stands for Alternate Graphics, but noone really knows/cares. That gives you the bottom right symbols. It is or should be the same as pressing both Ctrl and Alt, so there's a reason why you don't find many (any) ctrl-alt-x shortcuts in Windows, while ctrl-shift-x etc are used here and there...

For example Alt Gr + < gives \, e -> €, é -> @, ç -> {, ^ -> [

Ofcourse I regularly use the qwerty layout on this keyboard too, for a number of games, clean boot disks, linux livecd's, ... After the 100th time you kinda know both layouts by heart. The problem is switching between them, once or twice a day is no problem, every 5 minutes causes your brain to explode wink
Some games even use a different layout for setting keys in the menu and actually playing. Nothing as fun as binding an action to 'a' when you want to use the 'q' ingame shocked smile

Good thing that this thread has something to do with keystrokes grin