Nintendo's issued a big old pile of summer release dates for DS, Cube and GBA. Naturally most of them we've heard before - hell, some of them out now, like Pokemon Link and Metroid Prime Hunters - but there are, among them, a handful of things we didn't explicitly know.
So, since there isn't much more to this story and I can't think of any good reason to segue into a duck joke, here's an abridged version of the list featuring the most interesting bits:
Nintendo DS
Super Princess Peach (Nintendo) - 26 May 2006
Rainbow Island Revolution (Marvelous/Rising Star Games/ATARI - June 2006
Dr Kawashima’s Brain Training: How Old Is Your Brain? (Nintendo) - 9 June 2006
New SUPER MARIO BROS. (Nintendo) - 30 June 2006
Big Brain Academy (Nintendo) - 7 July 2006
Elecktroplankton (Nintendo) - 7 July 2006
Harvest Moon DS (Rising Star Games) - Sept 2006
Tenchu Dark Secret (Nintendo) - Sept 2006
Club House Games (temporary name) (Nintendo) - Sept 2006
English Training (temporary name) (Nintendo) - Sept 2006
LEGO Star Wars II (Eidos/TT Games/Activision) - 12 Sept 2006
Cooking Mama (Digital Bros) - Sept/Oct 2006
GameCube
Chibi-Robo! (Nintendo) - 26 May 2006
Super Monkey Ball Adventure (SEGA) - 2 June 2006
Harvest Moon: Magical Melody (Rising Star Games) Sept 2006
LEGO Star Wars II (Eidos/TT Games/Activision) - 12 Sept 2006
Game Boy Advance
Final Fantasy IV Advance (Nintendo) - 2 June 2006 1 June 2006 (Italy)