The "big boys" have their heads up their arses. Apple has a really fast hardware cycle, which is what's needed to keep up with desktop & laptop speed improvements. As an indie game developer I can tell you that the consoles all are very painful to deal with when it comes to publishing games. Hook your mobile device to a TV and have a bluetooth controller (I already do this w/ my Android), and you've got an awesome portable game console. Touching the damn screen isn't the best way to play a lot of (most) games, so I'm excited about the NexusQ, GoogleTV, Ouya, and AppleTV (or whatever this is for). Why? Because they don't suck to make games for.
XBLIG is a disaster. Sony's new indie marketplace is a clone of XBLIG with no way to address quality and discover-ability issues. Just like multi-game playing consoles killed the dedicated Arcade machines, General purpose (mobile?) computing will kill consoles. They're just neutered PCs. Which can you do without? Your PC or your Console?