I dunno, Jono, it's hard to tell in regards to detail, but that bottom right corner of the keyboard looks pretty darn purple.
Overall, I've seen a lot of other comparisons, now that the 7 is in people's hands, and it seems that, if you want evenness and less color shift with most 35mm rangefinder lenses, and just about all of them wider than 35mm, the 5N is the better choice. Granted, you'll get more center detail with the 7, which some may prefer, but you'll have a much steeper fall off at the edges and more color shift to deal with.