It's still too early to say "the sky is falling!" considering we're only into the second full week of sales in over 2/3rds of the portable market.
At the end of the first month of sales if there is a significant drop in sales figures on par with what was seen in Japan, then yes; the platform definitely has a problem.
The truth is, in Japan, there simply isn't a whole lot of compelling new software to sell the platform; no major must have hit title and in Japan more than any other market, it takes that single big title to move portables on a given week.
A consistent release schedule for marketable, solid titles more than any other thing previously listed in the OP is what will "save" the platform.







