Several obvious optimizations that make file scanning (for translation memory) faster: done ru/messages/kdebase and few others (18mb) in 50 seconds (kaider scans in background so you may translate files while it works).

Shortcuts for suggestions.

Database is stored in kaider data dir (~/.kde/...), its name is based on id of the project (hence new option in project config).

I added screenshot to techbase page:
<a href="http://techbase.kde.org/Projects/Summer_of_Code/2007/Projects/KAider">http://techbase.kde.org/Projects/Summer_of_Code/2007/Projects/KAider</a>;