Nintendo is notorious for introducing hardware that their third party developers aren't prepared to support, mainly stemming from not having seen a finished developer's system but a scant couple of months before launch.  That's what hurt the N64 and the GCN.  Nintendo is doing the same thing with WiiSpeak and Motion+.  They spent a couple years developing and testing Motion+, and have their launch software ready, and then only give premiere 3rd party publishers (like EA) enough time with the device to prepare launch titles.  The lesser developers are just now preparing products that will launch in Spring/Summer 2010.

you can actually believe that Red Steel 2 will increase sales wiimotion +.

I say this, that to date there are few games that are used.

I would guess the shortage issues Natal and The Wand face are far more permanent. Wii Motion Plus has already sold more than either Natal or The Wand are likely to sell in an entire year on the market, and both will cost much more to develop for.

Yeah I bought Wii Sports Resort, played it hardcore for about a week and a half and I never plugged the WM+ into my Wii Remote again. :/