At Apple's Special Event on March 2, 2011, SketchBook Pro for iPad made a brief appearance in Steve Jobs' keynote presentation introducing the iPad 2.
Steve was talking about 'fantastic apps' and this snapshot was the first to appear!
Check out the keynote (watch for it at 7 minutes, 8 seconds): http://events.apple.com.edgesuite.net/1103pijanbdvaaj/event/index.html
Francesco Salvati, the artist behind 'Dama Futurista' used in the snapshot, probably never would have imagined this type of exposure as he was creating it. Congratulations, Francesco!
See the AU Mobile Art Gallery YouTube video featuring Francesco: http://www.youtube.com/watch?v=HGAZPPWl3l4