Tile based games

While doing game programming in Flash, one of things i liked, was Tile Based games. Tile based games are relativley simpler in design and good for Flash like platform, where performance is an all-time issue.

I used to refer gamedev.net, jailbitch.com (currently OutsideOfSociety).
Recently Tony released some nice tutorials on Tile based game programming in Flash. I liked Tony OO approach which is something not found in Jailbitch tutorials, though logical and conceptual similarties can be seen in both (jailbitch and Tony's) tutorials.
I read them and found interesting, thought to share. Those who are unaware of these tutorials can found them here.