hmm i am also confused about this!! installing can mean installing from disc and also downloading as i downloaded KI and it said installing???
Ryse took quite a while to install. Clearly it's doing more than just copying data to the HDD.
Anyway, after about 2.5 hours with the console, I'm eager to learn more about how to navigate the interface and to see what else the console offers. It's interesting that I don't look at it simply as a gaming machine; it's an entertainment center.
Controller: The D-pad is phenomenal. The controller feels nice, and the buttons work well. My only issue is the high sensitivity of the sticks in the dashboard. Small movements will be enough to register, and I'd rather it be less sensitive.
OS: It's interesting to see how the OS manages each app - there's no way to close an app, from what I can tell so far. You can resume where you left off in an app, but I don't know to what extent (i.e., can I open up 10 apps and go back to the first and resume from where I left off?). Visually, it's so so sharp. Looks far sharper than the 360 dash.
Xbox Fitness: Huge disappointment here. I thought we'd get access to all of P90X and Insanity and the like, but they're only two or so sessions out of the entire programs. Basically, you get demos of the fitness routines, and that's it. You can't even buy the other P90X sessions (there seem to be other fitness programs that you CAN buy for $30).
Achievements: They can be viewed in full-screen, and they sometimes accompany short clips of when you earned the achievement (dependent upon developer).
Store: Games are scattered all over the screen, with no particular rhyme or reason to the layout. I'm still trying to figure out how to order them in alphabetical order. However, searching via Bing makes it easy to find the game you want (I used Bing to find Xbox Fitness, as I couldn't find it in the Store).