John Gruber on the lack of Mac updates and when they could be coming:

Something unusual is certainly going on. We have to get updated MacBook Pros and Mac Pros soon (September?), right?

I agree completely that there has to be updates coming for various products in the Mac lineup at some point, but September just doesn’t seem right to me. Assuming Apple keeps September as its iPhone event, as its done over the past few years, the company will want to keep the focus on iPhone and nothing else.

If there is a distraction, it would be for the release of iOS, which is complementary to the iPhone. Macs don’t fit in there at all. One of two things would happen: Either the Macs would take away from the importance of the iPhone release, or the Macs would get ignored completely. Neither one of those scenarios are good for Apple or the Mac products.