...i finally started to implement support for hardware accelerated rendering in jPCT (via OpenGL using LWJGL). It looks promising so far but there's still a long way to go until both renderers (software and OpenGL) will behave as similar as possible (that's quite difficult to achieve, because the software renderer is capable of some things OpenGL simply can't do...overbright lighting is one of them for example).
Anyway, here are two shots of the demo. The first one is rendered using the good old software renderer and the second one uses OpenGL (still very unoptimized).
Edit: I removed the poll from this thread. jPCT supports OpenGL nowm so the poll was rather outdated.
Edit: jPCT will remain Java1.1 compatible (the OpenGL renderer won't...) as it loads the renderers on demand, so don't worry...