Here is Newton Adventure, a 2D Platformer with puzzle elements (you can rotate gravity).

The game use JAVA, so you will need the Java PND for it to run.
It use glshim for the rendering, and offer good speed, even on CC model, and run whithout any swap.

The default keys are adapted to the Pandora:

Left / Right : Dpad
Jump : {X}
Use : {Y}
Rotate clockwise : {R}
Rotate counterclockwise : {L}
Rotate 90 cw : {B}
Rotate 90 ccw : {A}

History log
=========
Build 02
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* Fixed the No-sound issue

Build 01
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* Initial build
* Forced fullscreen 800x480
* Adapted keymap to Pandora

A thread is open here: http://boards.openpandora.org/topic/17772-newton-adventure/