The Gadgeteer have done a hands on review of the new Ifish from Sega, heres an excerpt:

And now for a review of a product that is both wacky and different. The iFish from Sega Toys, the same people that brought us the iDog. I wasn't too sure what I would have to say about this combination speaker and robot pet thingy when Brando asked if I would review it, but I thought it would at least be something offbeat. So here goes...

The iFish is about 8 inches long by 4.5 inches tall and is constructed of plastic. The head of the iFish is solid, while the tail resembles an actual fish tail with many bones. The tail can sway back and forth with a slight touch.

Read the rest here --> http://www.the-gadgeteer.com/review/sega_toys_ifish