Those fumbles could have been the difference in who won this game. One of them was a result of a challenge but the Colts still retained possession (why didn't the refs tell the Texans before they looked at the replay?) and the other fumble was by "The Edge", but luckily for the Colts one of their guys was heads up and jumped on it.
On a side note, I like the way Moses catches his returns (with his hands up above his head). It scares me a bit but I think it looks cool.