Adding in a mobile game trade forum would be really cool to the site I know I play a couple of online games on my phone and can't really chat with people or do trades a mobile forum would be awesome

To be able to introduce mobile trading, I think we need a mobile application subforum to begin with, it is currently being suggested here: Mobile Application Sub-forum

Although I think it will be very hard to implement a trading aspect, as proving of scams will become very hard, especially with so many different mobile OS platforms to cover.

Oh - and remember to add a poll, for more information on that you can review this: How To Post A Site Suggestion