Nintendo of America just sent word that the US version of Smash Bros. Brawl is getting another delay, albeit much shorter than the last one. Instead of February 10, Brawl is now expected to come out one month later on March 9. The reason, according to Nintendo, is that "development is taking slightly longer than expected." The official US Smash Bros site has already been updated to reflect the change, as well as include a brief note of apology.
The Japanese SSBB site also notes that Brawl is delayed one week in the region, from January 24 to 31. Europe's release date is still TBA 2008.