Was waiting out for the Capcom Unity Devroom to update on this, but being E3 and all posting is naturally behind. Greg has also been spending a ton of time dishing out his moves at the Let's Dance 3 exhibition. Today (well technically yesterday) fans celebrate "Rockman Day." It falls on June 9th because of the Japanese trend of making numbers into words based on sounds. "Roku" is 6 and "ku/kyuu" is 9. Put together they form "rokku" (since rokuku would be a little weird to say). This is why you sometimes see the number 69 crop up in Mega Man games, like on the Support Car license plate, and Mr. Famous' 69 battles winning streak.
Anyway, Capcom of Japan has prepared a variety of things in celebration. The biggest of which is the cool wallpaper you see above. You can head here to download it in any of three sizes, just press the red button after the notice comes up. Next, they've made the arranged Flutter theme that plays on the Rockman DASH 3 Project page available for download. You can grab it here. Finally, the Capcom Sound Sphere podcast "We are ROCK-MEN" has special guest Reo Uratani on the show, Legends 3's head musician. Of course it will be entirely in Japanese, but I read that Uratani-san plays an acoustic version of a super popular Mega Man Legends tune.
Additionally, there is a bit of commentary and thanks from various people involved with Mega Man, including BN and SF producer Takeshi "Horiken" Horinouchi, artist and character designer Ryuji Higurashi, director of Mega Man Legends 1 and 2 Yoshinori Kawano, Rockman Unity front man Ucchy-san, and legendary programmer "H.M.D." who was there at the start of it all. I would translate these if I had the time, but I'm certain it'll all be on Capcom Unity shortly.
Well then, a grand Rockman Day to you! I implore you, no, command you to get nuts on E-Tank energy drinks and play Mega Man games all day today!