I want to add a sqlite database to XCode 4 (applies to XCode 3 too). Tutorials state adding the .db file to the resources folder, and I suppose this gets copied to ~/Lib
Be careful with the amount of data you are putting into the Documents folder, this is meant for user data and since this data will be backed up using iCloud Apple have limited the amount of data an app can store and use in the Documents folder.
My app was rejected for using a 6MB SQLite database in this way. Instead copy it to the caches directory: NSCachesDirectory.
Or prevent the file from being backed up: https://developer.apple.com/library/ios/#qa/qa1719/_index.html