Since late December 2007 Isabella or "erisu" as she prefers to be called has been working on a Touhou style STG for the NDS. So far this looks like the best handheld homebrew danmaku to date, I'm sure anyone with a slight interest in shooting games will want to try this when she releases it. Visit Erisu's dev blog from the link below for a plethora of information on the project. Thanks goes out to heintsi for all of today's homebrew news.
This is definitely going to be best homebrew STG.. Let's hope she doesn't give up on this project.. Looks that gameplay will be really smooth and bullets look pretty detailed.