Re: 5x08 The Hungry Earth (Grading/Discussion) SPOILERS!!
As for future Rory and Amy...well that can't just be scenery, there must be a point to it.
In the scene that they cut and showed in the Confidential, the Doctor said that was their future in this time stream. Since a big theme this season has been all about how time can be rewritten and is not set in stone, I have a feeling that won't really be their future.
"Be that as it may, DAK rules. She is in the for front of scieintific advancment." - Spider
"You know you suck at Guitar Hero when your mother keeps kicking your butt." - My son