The Starcraft 2 Beta Launches In The Galaxy

Yesterday Shacknews reported that, "Blizzard revealed the next beta patch should be launching this week along with the much-anticipated Galaxy Editor, which will allow gamers to create their own maps and script their own scenarios."

The Galaxy editor will be a full map editor allowing users to create custom maps, and even brand new game types. However, players won't be upload their creations to Blizzard's cloud servers just yet, that will have to wait til Sc2 launches at retail.
As well as this new patch, a Mac version of the Starcraft 2 Beta should launch later week as well.