Although I realize that the games explorer has much that will be added/updated (hopefully), I think it would be nice to see the Game ID for each individual game that you can reach.

For example, after you've gone through ten or so moves into a line, only a few games that progressed through that position appear, and some may only be games that deviated on the following move; by clicking on one of those games, you are taken to its game history, but the Game ID isn't shown. It would be nice to see, especially if you wanted to bookmark it, etc.