In extras-devel there is this nice game call hex-a-hop, which afaik is pure OpenGL ES. It installs and plays nicely. At full screen, but just like any other Fremantle app, no difference there. Without the usual navigation bar though, but just like the SDL games, and there is a way to get off the app at any moment.

Intrigued by this thread I did some tests and I found no problematic situation e.g.

- Media Player keeps your music in the background.
- IM and email notifications come and go as usual.

So it looks like the behavior is more or less the same than with Diablo SDL games. Please port/write more OpenGL ES apps!