Well it looks like Giana Sisters DS is finally coming to North America after a rather lengthy wait. The game was recently rated by the ESRB and hopefully we'll be seeing a release here in North America very soon.
No word yet on the publisher or any release details, but we'll keep you posted as we find out more information. Until then, you can take a look at our review of the European release and if that leaves you wanting more information, you can always check out the game's official site.
UPDATE: After contacting the game's publisher Destineer about a possible release date, we were given the following statement:
The game should be coming out soon. I believe it has made it through Nintendo certification and is in the process of manufacturing. So hopefully places should start to see it in a few weeks or so.