I've got OpenBravo POS (community version) semi-integrated with Opencart. At the minute, I've got a couple of scripts and background processes that continually sync the database of the POS system and the website. I'm taking this further and looking at full integration from within the POS system, but that's a few months off yet

I'd be happy to supply the scripts to anyone that wants them - just send me a PM. You require access to either crontab or task scheduler on the POS computer, along with PHP5 and MySQL. [NB: The synchronisation only works for OpenBravo installations that use MySQL as their database!] [NB2: I have only tested it on OpenCart 1.4.9.x!]
All I ask is that if you do use them and find an issue with them (or maybe have a better solution for a particular issue) then you send your issue/fix to me so I can keep my copy up to date with the latest fixes.
Regards,
-A
