The same logic applies to the WiiU, FYI.

The difference is the WiiU comes with the tech as standard so if you are making a WiiU games you know everyone will be using the touch screen controller to play unlike the 360 where it is extra, and an unneed edition so late in the platform's life.

I have two hands. When I play games, my two hands are on the controller. I don't want to use my controller to scan something, put it down, and then pick up a tablet to read more information. I don't want to control madden with a tablet.

I understand the logic, but fails to take into account that already there are more people with Xbox 360s and some sort of tablet/smartphone that will work with SmartGlass then the number of Wii U's that will likely sell in the 1st year.  So do you think that developers wouldnt take this into account?  Do you think that Ubisoft isnt thinking hey lets also add the puppet master mode to Just Dance 4?  Etc. Etc.    Believe me publishers will know this. 

Pretty much what you said, thx. I talked to developers today that indicated that much.

They care that the X360/nextbox has smart glass, and the PS3/4 use the Vita in a similar fashion. It means that instead of not having a WiiU "Master Mode", they will tack it on for all three. They aren't going to care about performance or the fact its standard on the WiiU. They're looking to keep costs as low as possible. If all three systems have a feature - smartglass/tablet, controller, or motion technology, they are going to play to those strengths rather than care to do a one-off and possibly fragment who they can sell to.

Only Smartglass does alot more. and has been in development longer than WiiU

The Wii U is just a late to the party piece of tech with loads of bits missing. Gone are the days where just a games machine is enough to sell it. We are entering next generation where a lot more people will care what else it does.

Nintendo widely missed the boat, and will begin swimming and drowning trying to catch up.

I'm not sure about that part, but I meant that Nintendo already made the Wii U tablet irrelevant before Microsoft even showed Smart Glass.

LOL.

I get it now.

This. I did it for my first laptop, I got one of the last available with XP before getting stuck with Vista, now I'll have to do the same about Win 7 before Win 8 become the only version installed.

About Smart Glass, MS made it for greed the proprietary and crippled version of a good idea:

- the good idea would be writing protocols, drivers and programs to use smartphones and tablets for those purposes

- a possible proprietary but not excessively crippled version would be to limit the choice to Windows running ones

- the totally crippled proprietary version is allowing only Windows 8

Edit: some of the sources cited in the OP say it will be cross-platform, not Win 8-only (for the part regarding the phone or tablet), this could widen its audience and success, but about its effects on WiiU, PS3 already offered many of its functions before and nobody said they make Wii U tablet irrelevant. Anyhow, what prevents Ninty from offering these functions too? 3rd party controllers already exist for Wii, Ninty could make it possible for gamers to use smartphones and tablets with enough functionalities and control axes as additional Wii U tablets.