Great graphics, rolling around at 50-100FPS depending on what's going on, fully voice acted and it sounds good. It is very Elder Scrollsish which is good.
To Celebrate the 5th anniversary of the APP Store Apple is a few games and apps available for the nice easy price of $0.00, see the below link for details!
IGN has put up a handy comparison chart. I believe that the constant internet connection for the Xbox One is not required for operation but to what capacity has not been confirmed:
IGN is reporting that the Durango development kits come with documentation that states that every XBOX will have a hard drive, all games will require an install and BluRay discs will not have play from disc support. In addition the console features and "always on always connected" feature which may be a DRM control.