Damn, most people here aren't open to new and/or different stuff...it's like they aren't allowed to like anything in gaming, "mainstream" related, yet they praise a "film" like Transformers. :lol
Nintendo won for me. First, by announcing that the Big Three (tm.) would release this year, any one of 'em with the potential of nabbing "Game of the Year". Second, by unveiling Wii Fit, which is in my opinion, a great alternative to have fun while keeping fit, and involves the whole family. Third, by showing footage of Mario Kart Wii and confirming it's online capabilities, as with a bunch of other games that weren't thought to have online before (Medal of Honor and Guitar Hero III come to mind). Finally, new channels for the Wii Menu (Check Mii Out! and WiiWare channel).
They didn't need to announce games for the next year (though, they did: Mario Kart Wii and Wii Fit are scheduled for early next year), that's for next's E3. Last year was an exceptional case because the Wii hadn't been released yet, forcing them to show an "outlook" of the first year and a half of the system to give a better idea of what to expect. But right now, after the great sales and momentum, they just needed to keep it...and they did.