Man, iv'e been away for a while but i'm super hyped there will be a trading system added in the future. Its much needed in any game where looting takes as big of an upfront role as this one IMO. I don't see it being game breaking even if all items are tradable (minus quest items and the such). It would be very cool to see material trading be available as well. Should need a higher level to trade tho
(Gun level does however effect the drop rate)