The CS2 release doesn't specifically address the Mac i5/i7 problems with the Mbox apparently and the support for OSX 10.6.3 will be included in the next release. That's the news I have.
I'm relaying that from support - although still not official statement anywhere, but then why would they say:
"Hey our gear doesn't work with the Imacs!"
Wonder how long another update will arrive...
Chris