Since the beginning, we have made it a priority to make DDB available (and usable) on all types of devices. With everything we do, we take a "mobile first" mentality. It's harder to get things working well on desktop and then condense that all down to the phone than it is to go the other direction.
With the character builder and sheet, we have not spent as much time on desktop views because the UI itself might change over the course of beta testing - it would be less time and effort for us to make those changes in one place first and then expand out to the desktop views to polish it all for launch.
I wanted to share that philosophy so everyone testing will know - the desktop views will certainly see updates towards the end of testing.