Oh thank God, its about time that we regain the ability to play our 360 games on our XBOX ONE. I will finally have games to play on the console. The thing about backwards compatibility is that it is a great thing to have, but the vast majority of games, and people will not use it.
Its the sad truth, although there is the little fact that the number of games coming out is slower than it was during the 360's time in sun so perhaps more will return to the older titles. I do wonder about XBLA games, if I can recapture those from my 360 library... ... where do I sign up.
There is a preview program starting now, and this should be in full swing come the holidays.
For those wanting to know, this will work on close to 100 games when it comes out, and it will also work for games both digitally purchased and for those that you have the disc. Now for the disc games what will happen is that it will download the game to the console, but will require you to have the disc in the drive to play it, so basically like old times.