Per Apple's webpage: "In rewriting these applications, some features from iWork 09 were not available for the initial release. We plan to reintroduce some of these features in the next few releases and will continue to add brand new features on an ongoing basis."
If you read their release more closely - it indicates that the next sixth months will see multiple releases. As I said before on the other thread on this issue - by refactoring the code base to be common across all platforms and offering iWork free with automatic updates - they will stop delivering monolithic upgrades but will do what Google does and issue rolling updates when the new functionality is ready for release.
Apple has created a platform (64 bit and software foundation) that will allow across the board feature updates that will work as native client and web based applications. I go back to MS's odd backlash against the iWork updates. They were not reacting to iWork in its current form - but in what it could become down the road.
MS Office while more feature rich - does not have that commonality across their native client and cloud apps that Apple has developed now. iWork will look very different a year down the road.
They already look very different. They look much worse -- that is, to the people who adopted them years ago, as opposed to having only discovered them once Apple started delivering them for free. As one of the former, I am only slightly more encouraged by Apple's recent clarifications on the direction of these apps. The point of comparison is to highly discouraged, which I have been with complete justification based on the debacle of this recent release.