Apr 28, 10
In the future, there will be a "Pro League" composed of the top players in the ladder. Players will be invited to the "Pro League" using the same methods that determine current promotions between leagues. This league will not be divided by divisions and will have a set number of participants each ladder season. For the best players, this will be where they can see exactly how they compare to the other top competitors.
However, for now we've adjusted the search methods for players in Copper and Platinum leagues so you should be matched up with players more closely to your skill level.
In my own experience I have found that not having to worry about which division I am in has made the competitive experience more fun. I like knowing that I have been placed in an appropriate skill bracket and have a "Top 100" feel by being in my Platinum league, rather than worrying about being only "Top XXXXX" on Battle.net. If there's someone in a different division that I want to compare my skill to, I can challenge them to a series of Custom Games. This also lets us play multiple games so we can better gauge our relative skill levels.