Custom project, mobi-cart connector.
I will just clearify again
It must put all products in the mobi-cart, including description and pictures
It must also put all the stock of the products into mobi-cart, so when something changes on our site, it must also change in mobi-cart (also with description etc)
When an order is on the mobi-cart it must go into our site, so we see the order on the site and so we can confirm, send emails and all that stuff from my site