Re: What's wrong with Pages, Numbers and Keynote?
Of the iWorks trio, only Keynote is functionally that is superior to its Office counterpart. No surprise, really, as the lead beta-tester for Keynote was none other than Steven P. Jobs.
Pages has some amazing oversights for what is supposed to be a document creation tool (section referencing, TOC, indexing, bibliography/citations). It also routinely lost its list and section numbering when I used it, and that was a complete deal-breaker. Back to LaTeX...
Numbers is just about okay as a spreadsheet, but the multiple-chart-per-page layout doesn't interoperate well with any other spreadsheet, and this alone rules it out for commercial use. Also, it lacks a lot of lookup and logical functions that are essential for modelling and planning uses. The last version I used also didn't do pivot tables, which I would consider to be a baseline feature for a spreadsheet.
I really like Keynote, and I wanted Pages and Numbers to be as good, but all the UI polish in the world won't hide that they're not up to the job.
If MS can provide "real" Office with a slicker UI, they're on a winner. There's an entire market of corporates who just want that: a 100% Excel-compatible spreadsheet viewer/editor that you can carry around like a clipboard. There's another army of customers that's just waiting for a way to review and annotate long Word documents without fear of rendering them unusable in the process...