Homebrewer, Lupi, is working hard on his first DS project, Zelda Platformer. While the game will undoubtedly undergo a name change, Lupi has already implemented the following items:

• Level system
• Collision system
• Life system (with hearts!)
• Lots of "Link sounds"
• Title screen
• Most of the sword attacks (including air and spin attacks)
• Bombs
• Arrows
• 8-direction boomerang
  

Lupi is currently coding the "enemy engine." Once that's complete, and a tutorial level has been designed, he'll release a demo.