[flubert]

Not related to the Smalltalk implementation apparently.

http://www.object-arts.com/dolphin7.html

[kps]

Or the Xerox Dolphin, the first of the post-Alto PARC machines, followed by Dorado, Dicentra, Dandelion (the Star hardware), Dandetiger, and Daybreak. A Dolphin emulator would be neat.