Advanced Media Network's Rumor Reporter got their hands on what they say are print outs from GameStop and EB Games computer sales list.
Some of them may be tentative dates, but most retailer lists (from GameStop and EBGames' POS systems, not the website) are good indications at upcoming games. Here are the highlights for the Wii and DS lists:
DS: Jam Session, Mega Man Star Force Titles (2), Dynasty Warriors (Wi-Fi), Assassin's Creed (Confirmed), Simpsons: The Game, Golden Compass
Wii: The Bigs, Resident Evil Wii Edition (Coming 06/25), CSI 4: Hard Evidence (Confirmed), Simpsons: The Game, Golden Compass, Harvest Moon Wii