I think something like an eBay for NEM will be a requirement considering things like this are starting to emerge:
http://www.thebitbay.org/Hmmm!
Does it mean that this should be a feature (p2p marketplace) integrated into NCC - NIS
and not as simple (centralized) website?
Yes, I checked out Amys link on the forum. I think this is something our devs could do.
I'm sure our devs are capable of it, and many of the features are planned for NEM anyway. More competition is always a good thing. NEM has and will have many advantages over this BitBay thing in the end, it's just a matter of execution and marketing. The more decentralized solutions there are out there, the better in my opinion anyway. Decentralized markets are the future, but we will need more than one for many reasons.