This has not been the first collaboration between Best Buy and Nintendo during E3. In years past, Nintendo has partnered up with Best Buy to make E3 more accessible to the fans by offering demos and competitions in various Best Buy stores across North America. It is possible that Best Buy is hinting that they will offer demos of Zelda U in their stores, since the only way to play Zelda U is at Nintendo World and the conference itself. We will have to find out during the press release!
(Photo Courtesy of My Nintendo News)