Now that we know that 400k units (the entire stock) sold on day 1 in Japan, and that many more would have sold had they been available, I have little doubt that North America will mirror that mentality.
According to reports, NA will have access to about 1.6m before the end of March, and with 3DS launching on March 27th one could assume that all (or at least most) will be available on launch day.
Should be interesting...







