There has been a lot of work done to improve the DSP functionality (720p etc.) but as far as I know, the GPU still doesn't do all the things it's supposed to. If this is correct, then rather than trying to overclock, perhaps the empasis should be on operation?

If anyone reading this can offer a proper explanation of the difference between the role of the GPU and the role of the DSP in the N900 and whether a "fix" for the GPU/drivers would actually improve the device, it would be appreciated. My confusion is because I thought all graphics were handled by the GPU but a lot seems to be done by the DSP.