There are basically two things modRana should gain by using clutter - performance and smooth/seamless transitions. Layer blending, rotation and scaling, which are quite "expensive" with software rendering should be almost "free" with GPU acceleration. It will be also possible to properly animate certain operations that currently just switch from one state to another and might be confusing (zooming, rotation). It should be also possible to do a fake3D view and kinetic scrolling, like in CloudGPS. The actual performance remains to be seen, but initial testing looks promising. BTW, I'm going to submit the Clutter interface & offline routing as existing application improvements to the Coding competition. Another progress update... I've got the text wrapping in the navigation info box working. Now I just have to solve some remaining minor issues and do some testing. Next release should be hopefully ) coming shortly.