hi
i've played with demos for a while.
I have some comments for your consideration for next releases.
1. Address should include generic fields eg. state/province, region/suburb, zip code/postal code ...
Also, please add country as well. You may not want to display - but use for search across countries (otherwise, why multilingual !).
2. Add garage feature to properties. This is important in Australia.
Look at this script which is adapted to Australia
http://www.anansi.com.au/realestate/
Finally, i think you guys have done a very good job.
Cheers