We've talked before on the subject of a game's UI and how easy it is to get around the menus. If this is done poorly, it can make the entire game feel low-rent and slapped together. The more features you put into a game, like multiplayer and customizable controls, the harder it is to keep the UI elegant and easy to use. Bungie has been spending some serious time making sure the UI for Halo 3 is as good as it can be, and it seems to be paying off.
As it stands now, the interface is designed to make it very simple to get to a "lobby" and make all necessary changes from there – so that you can customize your experience, appearance, and more importantly, really specific game types from anywhere.
Folks who've played a lot of custom games know that it is very frustrating when the "Quick Options" selection just isn't enough to get all the options you want in a game type. You won't have to worry about that from now on. And you can also change your controller setting from anywhere, at any time. That one was a given, right?
Nice. Being able to set up new custom matches was a large part of what made Halo 2 multiplayer so much fun. Add to that the fact that any amount of time spent outside of a game is time you should be playing the game, and you have two compelling reasons to make sure that UI hums. It's going to be great to be able to quickly change up the options in the game between matches, and to have full control of the game whenever you want to make major changes.
It's good to see a developer paying a lot of attention to how the UI works, and it's very cool that they're posting and getting excited about it on their blog. This is one of those things that when it's good, it's taken for granted. When a UI is bad, we all complain. It's a thankless job, but that doesn't make it any less important.