WiiWare -- Nothing at all this Wiik.
DSiWare -- One new game -- Crazy Chicken: Pirates, a point-and-shoot stylus-driven rail shooter starring a bevy of piratical poultry that the player must knock out to win treasure. Judging from the title, its meant to be part of a series.
3DS eShop -- I hesitate to call this a separate game, since the DSiWare version will run on the 3DS and its about the same price, but if you want visual depth, you can buy Crazy Chicken: Pirates 3D instead.
XBox Live Arcade -- One new game here, as the Summer of Arcade wraps up: Dust: An Elysian Tale, an action RPG with beautiful hand-drawn animation. Its also notable for its indie cred, as it was developed mostly by one person and won the 2009 Dream.Build.Play challenge run by Microsoft.
PS3 on PSN -- Just one new game here as well, an intriguing indie puzzle/adventure game called Papo & Yo. The story concerns a frog-craving pink rhino named Monster, a toy (or is she?) robot named Lula, and a young boy hero named Quico; its an allegory for alcoholism and the damage it inflicts on loved ones. And no, Im not making that part up this week!