"I was reading the maemo-mapper 2.0 wish list a few months ago, and the most interesting proposition I heard was to use sqlite to store all the tile information instead of the file system. I haven't heard any news about maemo-mapper 2.0 since then, and because maemo-mapper crashes and corrupts my mem-card on my N800 whenever I try to download bulk maps, I made my own little version of maemo-mapper." Just wanted to point out that maemo-mapper has absolutely nothing to do with corrupting anything, that nokia has fixed the bug in the kernel, so this is a non issue. Good luck with your project, but I am a hardcore maemo-mapper fan myself. GNUITE ROCKS!!!