Here's an in-depth video of Xbox One controller. Zulfi Alam, general manager of the Xbox accessories group, talks Microsoft's Major Nelson through each design decision, from the type of motors involved in feedback to where individual screws are placed.
PC Compatibility:
Xbox One controller will be released for the PC in 2014. Or you can say that Microsoft will release drivers for the new controller in 2014. Existing PC games that support the Xbox 360 controller will work with the Xbox One controller too.
Source: YouTube, VentureBeat