Atari announces Downstream Panic! for Sony PSP.

The game will offer unpredictable, fast-paced, tactical puzzle-action that places players in the position of a sea-creature preservationist out to save the world from a fantastic cyclone that has blasted the world's fish into the Earth's atmosphere. It is up to the player to protect fish from land, predators and other obstacles through the use of a variety of innovative tools as they guide fish on their descent back into the ocean.
Developed by Eko Software, Downstream Panic! for the Sony PSP is expected to ship early 2008.

I am not sure why Atari is announcing this game now. It will not ship for the holidays.
Via the Atari site.