OpenERP still needs the shared funded addons - DB Synch Tool and Open Office Report Designer Tool - these are priced at Euro 250/- and 500/- respectively.
Checkout FrontAccounting at the Wiki and you can use their Report Designer for free.
OpenERP (formerly TinyERP) is based on Postgres 8.4 and Python3/GTK. It uses a thick client - compiled Python/GTK and is also available for use on the browser. There is a .deb package as well.