In Adelman's own words: "...more and more people are working from home, and we recognize that developers are forming virtual teams around the world. I know we've shied away from talking about these things publicly in the past, so I'm glad that I can officially confirm that the office requirement is a thing of the past."
The full conversation is particularly worth reading for would-be eShop developers. It's taken some time to get the ball rolling, but I think we're starting to see the company's new approach pay off.
Nintendo's indies guy tells you how to get your games approved [Gamasutra -- Thanks, Jordan]