Read the huge post I made a few posts above because I'm not going to write it again. In short, I blame the quote tree policy :P

They won't, with inflation things will continue to go up in price, every nickle and dime taken will never be given back, every tax or toll goes from temporary to permanent one way or another. 

Developers don't deserve anymore money, if a used copy exists then it means it has already been sold at full price (or whatever the reduced new price was) , the developer has their money for that copy of the game.

If GAMER A buys a new copy of a game and use it's offline and online features then he deserves to as they were included in the original purchase. He gets bored and sells that game back to the store. That customer no longer has that game so can't use it's features. GAMER B arrives and buys that used copy as opposed to the expensive new copy, they aren't only buying the game, they are also buying the right to play all features of the game GAMER A originally bought (online features and all).

All developers are complaining about is the fact that they aren't seeing any money from this used game sale, their complaint is to the retailer like you say. Yet they did receive money from the original sale. Surely having active users who could potentially by DLC is better than having and inactive one who leaves his copy gaining dust on a shelf?

On topic, the way this reads it's a system being given to retailers to manage and log used game sales, while giving some money to a developer based on the resale of an already sold item.

There are 4 or 5 games retailers I can think off in my city that deal in used games. GAME is the obvious one and the big one so they will be integrated. Grainger Games which is up and coming and might be able to do this, then there is the small independent which has new and oldschool games. They have 2 stores across the country, will they be using this system? Then there is the small market stall which only really deals in used game sales. I guess they are out of business.

All this to battle piracy.

They will never win the battle against piracy, only diminish it. Fake activation servers, rooted/hacked systems, they turn their system into a pc, it will have the same issues.

Well, gotta stick to PC then. Not sure if getting PS4 yet, depends really if they have similar bs going on and whatever games they are going to release.

What's the incentive for a retailer to agree to this? "It's better than nothing"?

Unsure how I feel about this. Gonna need to think about it some more before I comment properly.

I do remember Phil Harrison saying they would detail how consumers could sell their games directly to other consumers. Therefore you may not even need to go through taking your game to a big retailer to trade it in.

With the current 'online pass' system proving your point. New Battlefield 3 is £18. Buying used with online pass code having been used is £12. To buy an online pass costs £8 (or did last I heard). So total £20. Used copy should be £4 or less.

There's no way that retailers will accept eating such a huge chunk of the sale just for the privilege of selling the games used. I'm sure it'll be WAY smaller for them, so as to strangle private sales and force people to go to the big stores.

The notion that they expect such a fee to be applied across the board makes the rumor seem highly suspect.