I am not aquainted with Mappero internals but skimming its sources makes me belive that replacing rendering specific component would not change things much. Mapppero already uses cairo which provides hardware acceleration through OpenGL ES. It should already be capable of achieving framerates similiar to CloudGPS. Just look how smoothly Mappero does rotate the maps.

I have very limited free time and CloudGPS is developed in hard conditions. I can afford only a few hours a week to code and a few hours to think about its design. CloudGPS for N900 is in its early stages but still some of the comments in this thread indicate that users did not even realize that mapping on N900 can be such a great experience. I consider raising the consciousness a huge success already. I think it will inevitably lead to improvement of other mapping applications on N900. But due to my limited free time I am not really able to be directly involved in development of other projects. Getting accustomed with other projects takes sometimes much more time than designing your own project. If the goals of projects differ enough it is reasonable to start your own.

The goal of my project is to provide simple navigation with great user experience. I do not plan to create GPS swiss army knife (which I belive Mappero aims to be). CloudGPS aims to be something like this:



But I am still eager to help and answer any sensible question.