Nintendo has revealed that Metroid Prime (GC) and Metroid Fusion (GBA) will connect via the GBA/GC link-up cable. What the games will do once linked is unknown, but one company representative said that it "is truly unbelievable." The games will feature simultaneous release, on November 17th here in the States.

Nintendo Japan gave a Japanese release date, as well as pricing info, on the Gamecube Broadband adapter. Due on October 3rd and priced at 3800 yen (about $31 US), the Adapter will allow Japanese GC owners to hook-up via their broadband connections.

Sega has announced that it's much anticipated Shinobi sequal will release in Japan on December 5th. The game is entirely 3D, shying away from it's 2D roots. In it, gamers control Hatsuma, the leader of a ninja clan named Oboro. The games North American release is scheduled for a vague "fall" release.
-Zerekile
Sources: Videogames.com and Gamers.com