It'd be nice to have Project, Visio, and Access on Macs for overall cross-platform compatibility reasons. (Assuming, that is, that Mickeysoft could actually make their apps on Macs read/write files which worked with their apps on Windows, something not guaranteed...)
Or Mickeysoft could try something radical, such as, oh, _reducing the price_ of Office on Macs to make up for the fact that some components are missing. Office Home and Business 2010, which doesn't have Access, costs US$280. Office 2008 Standard, which doesn't have Access, costs $400. Office 2008 Special Media, which doesn't have Access, costs US$500. Pricing for Office 2011 doesn't seem to be yet available. Or maybe I missed it. Correction on this point invited. In any case, the maximum price should be US$280, same as for Office 2010 Home and Business.
And, oh, yeah, I _really_ love this quote:
"Compatibility is Essential
No one likes being caught off guard, especially when the pressure’s on. That’s why it’s vital that shared documents, presentations, and spreadsheets open as they were designed—regardless of the computer or operating system. With Office 2008 for Mac, you can feel confident in your compatibility."
from <http://www.microsoft.com/mac/products/Office2008/default.mspx>, especially given that Keynote and Pages can open some PPT, PPTX, DOC, and DOCX files that Office 2007 and 2010 won't... Gotta love it. Really.