You'd think they'd learn, but look at many of the games that ran fine on 386s, but were spastically fast (or slow, depending on which game you had) on a 486 of any speed. And since PDA platforms frequently take such small jumps in performance (between models, that is) that it is an easy thing to miss.
Glad they did it right...I'll be upgrading my hardware soon and I'd hate to see my fishies swim themselves to exhaustion.
_________________________
In theory, practice and theory are the same. In practice, they are not.