>The [600MHz] UltraSPARC-III microprocessor is expected to sample
>during the summer of 1998.
Well, it's November and Sun has just announced samples of a 400 MHz
UltraSPARC-II:
http://www.sun.com/smi/Press/sunflash/9811/sunflash.981102.2.html
On the other hand 21264 Alphas are now shipping (in high-end machines).
Rob.