The patch also brings improvements to controls, performance and stability, as well as the tantalising promise of "additional audio and visual polish." Shiny!
At long last, all three versions of the platforming desecrate 'em up now support online co-op. The feature was initially due to be in the original Xbox Live Arcade release on August 18, before being pushed into a patch expected by September 28, then finally arrived on October 27. Both the PC and PlayStation 3 editions similarly launched with support, promising it'd be patched in later. The PS3 patch was released yesterday.
By the way, if you own the XBLA edition and have yet to download the first DLC pack for free, which was offered as an apology for the online co-op fiasco, be quick as the offer was only good for thirty days--a period which expires on Friday.