Is there a Bitcoin - P2P Marketplace application? One that runs on its own and connects to peers rather than relying on some central server? Really the Marketplace board is not all that great of an interface for buying things online. I'd lilke an interface that looks like e-bay but with BTC prices. Some escrow system would be good too. I'm not asking much, just a pointer to it if it already exists.
There are some marketplaces that accept Bitcoin, but not many of them really get any traction and big popularity, most well know was Openbazaar with it's forks, and bitify.com (not p2p).One more peer-to-peer marketplace I found is called Bitejo.com, it is still in beta phase, and it doesn't have that much offers, but it exists.
There are some rumors about ebay introducing Bitcoin payments, but we may need to wait more until this happens.
EDIT:
I found one Ebay clone called Ethair.com, but it is based on some shitcoin scheme, and I don't see much activity in their social media accounts.
EDIT2:
Try out shopinbit.com if you live in EU, they accept Bitcoin payments, and they have topic in bitcointalk forum:
https://bitcointalksearch.org/topic/shopinbitcom-europes-biggest-bitcoin-store-800000-products-5397142
