I could be wrong but I suspect that from the middle of 2007 through 2008 Nintendo didn't put too much emphasis on attracting third party support or starting development of "core" games within Nintendo because they assumed the sales of the Wii would encourage third party support; and the line-up would generate itself. You can't (really) blame them because countless publishers have said for generations that they would give Nintendo's systems (Gamecube or N64) much heavier support if only they had the userbase; and having a system that is on track to break 100 Million units sold should justify very heavy support. For many (often foolish) reasons, third party publishers did not see value in producing games for the Wii and continued to make excuses, and the line-up that should have arrived in 2009 never materialized.
If I'm correct, Nintendo would have been fairly aware of this quite awhile back (6 to 12 months ago) and could have started taking steps to correct the problem with a greater focus on attracting quality third party support in 2010 (and beyond) as well as producing quality titles internally. If they realized early on that this was a problem, and were moderately successful in their efforts, 2010 could be a much better year for games than 2009 was ... If they realized later or were less successful with their efforts 2010 may not be particularly great either.
Now, one would hope that regardless of the immediate actions Nintendo has taken that they would realize the importance of agressively attracting third party development. In an environment where Microsoft and Sony are both heavily supporting publishers to get minor exclusive content, Nintendo can't assume that publishers will choose to favour the Wii simply because it has a large install-base and inexpensive development costs.
