Last month, I spend some time trying to learn OpenGL ES[1] and to practice it, I'm been working on new OGRE[2] render backend to mobile devices. In order to test this, I've used some software OpenGL ES simulation like Vincent[3] and PowerVR[4].
At the moment, I've already got the basics OGRE samples running, but there are some things to be fixed, which I intend to fix on the following weeks.
If someone is interested in this code, send me a e-mail and I can send it back, When everything work well, I will send this to OGRE guys.
[1]http://www.khronos.org/opengles/
[2]http://www.ogre3d.org/
[3]http://sourceforge.net/projects/ogl-es
[4]http://www.imgtec.com/powervr/insider/powervr-insider.asp