With the future well known, and sadly someone has probably already stole this thunder, but imagine what a cool ad campaign it would have been if there was "there's a plugin for that" for websphere or Domino, Sametime etc..
Or in Notes parlance, there's a db for that, well there used to be, now there's a sidebar widget :-)
Maybe we should be creating a set of ads making fun of the UI issue? Even use MBR as the spokes model, like the UPS commercials using the original designer?
There's a UI for that :-) Perhaps a past/present thing, like the college photo vs today which is better? Or look at what some cars were versus today?
Something that shows the product, enjoys the past but encourages the future as well as provide a variation on themes.