Downloading Ovi Maps without a network connection

Unlike Navicore/Wayfinder on previous Maemo devices, Ovi Maps on the N900 downloads maps on demand. This is obviously a problem if you're going somewhere abroad and don't want to pay extortionate data roaming charges.

Fortunately, S60 Ovi Maps users also have the same problem, and the solution is straightforward:

1. Scroll down this post to Direct Links for Ovi Map Version 00.01.25.114 and download the maps for the countries you are interested in. (EDIT: updated to different blog post)
2. Unzip the maps into cities/diskcache on the big VFAT partition (mounted under MyDocs) on your N900.
3. That's it!

Some of the files you may already have, I've chosen to overwrite them; YMMV.

However, as far as I can tell, searching for locations still requires a network connection :-(