It looks like the DSiWare service is going to get something good.  Coming November 29th, Cave Story will be available for the DSiWare service in North America.  As of this post, there is no price announced, but my guess is 800 points.  Get ready for some 8-bit goodness in the palm of your hands.

Finally out! 
 
Music's not as great (through the DSi XL's speakers) as the original soundtrack, but it's not far off.  I'll try it with headphones and see if it's better later.  But Just came to see if people were talking about it before I dive in further yet again to this game.  Sadly it looks like not, get it people; it's 1000 points.  $10 bucks is easy to spend on a game I've played so much already, just to support it (and play it yet again finally on the go, in proper form).  Plays great, looks nice, they didn't try to do what they did with the Wii version and change the graphics.  <3 Pixel & Nicalis.

Hrm, wonder if this is worth it for someone who already bought the wiiware version...