And that's probably why they mentioned games that weren't CoD or EA games, as well as the mention of upcoming exclusives.
Some of the games were mentioned after the reveal (Assassin's Creed IV, Thief, Watch Dogs; however, those were a given that they would be on the Xbox One before it was revealed). Destiny was mentioned after the reveal, too. The ones that Microsoft mentioned were Forza 5, Fifa (EA), Madden (EA), NBA 14 (EA), UFC (EA), Quantum Break, and Call of Duty: Ghosts.
Anything else I'm missing? Because that's a bit all I can find besides the Xbox One having "15 exclusive titles", and a "historic IP" from Rare that they didn't mention the title of. Again, I'll wait for E3, but so far, none of those games mentioned during the reveal have interested me.
So they can fiddle with the "internal" hard drives whenever they need to swap hard drives to access different content?
A lot of them from the get go will change out the hard drive for a bigger one and save their content there (makes more sense to upgrade the HDD to something bigger if you got, say the 4 gig 360 slim). The 360 HDD is quite easy to mess around with, anyway. All you have to do is "pop off" the HDD on the non-slim models (launch models, I don't know about) or remove the cover and pull the HDD out in the 360 slims. It's not like the PS3 HDD, but then I'm not sure what the HDD for the Xbox One is like. I guess it doesn't matter, anyway, since it's non-replaceable.
If the HDD was bigger than 500 gig, it wouldn't be such a big deal. Computer wise, with regular tasks and that isn't aimed at gaming, 500gig is a great size, maybe a little too big for some people. For gamers? 500 gig, especially for a new generation console like the Xbox One, it's a little too low. Then again, we don't know for sure how big the size of each game is; however, if you're saving and installing the disc to the HDD, it's going to go through 500 gigs quick. That's not to mention system updates.