I'm happy to have the opportunity to test this portal and I hope to give my controbute to make it grown well.
In my opinion a project can reach hundreds of file very fast therefore the ability to organize file in folders is mandatory.
I did read that upload a folder is not available yet; it would be great if the existing folder structure will be maintaned (of course when both features will be available)
P.S.: I am happy to see my picture (Crazy Bike) being used in the portal home page