i'm not sure i understand the question.

i read it as; "can i download cloudmade maps and copy them from my PC onto my n900?"

i used to download cache packs for nasa world wind and unzip then to the relevant directory, and hey presto they would work.#

so i am a little dismayed at all this talk of creating SQLite databases and such nonsense.

and i misinterpreting the original question (hopefully so)?
if i am not misinterpreting the question, why on earth is so complicated to use cache packs of texture detail in maemo mapper (very useful if you down't have an unlimited data plan)?

regards