Games that Take advantage of PowerVR N95

The only ones I know of are Snakes (though it seems the same as on my N91 tbh) and System Rush.

Any games that are made to you OpenGL ES will take advantage of the MBX processor. The System Rush demo, that ships with the N95. Some networks remove the game, but it can still be downloaded from here : http://www.nokia.com/A4323689

BTW, The graphics processor is not a PowerVR, but a product called MBX. Developed by ARM/Imagination

The problem is that not enough phones use it, games producers with any financial sense stick with Java.

Not strictly true... Java provides the JSR184 & JSR239 api (3D gaming api), that can utilise OpenGL ES. So if the game is designed to use the above Java features, then the 3D accelerator will be used.