> The PA6T CPU paves the way for the introduction of SMP with AmigaOS4.x.

OS4 core developer tonyw:

"I would expect OS5 will be 64-bit and SMP."
http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=33968&forum=33&start=20#622636

Seems SMP got postponed to "OS5".