I also had a similar question -
I've used xcloner to clone a website, which was great - the wp settings to access correct URL and database were done nicely.
However, the new database, populated with the old database's data, has references to the old URL in it. This is really bad.
I wanted to know if this is something xcloner will fix in the future? At present, it means I have to go, open the dump in a text editor, and replace every old URL reference in the dump file with the new one, then re-import that modified dump file into the new database.
I must say this plug-in is awesome --- i have NO idea why more plugins like this aren't available since making clones of websites is absolutely necessary if you maintain a DEV and WWW version. Thanks for all your work!