You've only touched the tip of the iceberg. http://www.kneeboard-uk.com
has info on tricks that might be useful. In the gallery under videos, you can see some of the tricks possible in action.
Here's a small list: 180 front, 180 back, ole', layout, back scratcher, back roll, back roll to revert, front roll, front roll to revert, front somersault, back somersault, layout to revert, wake front to layout, macasini, roadkill, backwards back somersault, 360, 720, 900, 1080, surface roll, skyscraper, mcdouble deluxe, invert, etc.
I haven't even gotten to the air tricks that you can do on the second bounce after you land.
You can also purchase a video called Air Assault that shows a lot of these tricks. You can buy it through http://skilimited.com
ride low, GO BIG!!