Blizzared VP of Business Development teased fans with some random comments concerning Starcraft franchise. IGN has the scope of what was said at London. On the other hand, SCLegacy speculates that based on comments from Itzik Ben Bassat—not confirmed—Blizzard might be working on Battle.net Broadband.
Again, this is speculation by SCLegacy. Gamespot also has an article about the subject.
—Thanks, tehtroll for the heads up!