I feel that Excel is the strongest of the MS Office apps, so it will be interesting to see how this new iWork app turns out. On one hand, it would need to be pretty powerful and slick to make me want to give up Excel - then again, I am a bit of a power-user of Excel. On the other hand, Apple is all about simplicity, and perhaps they will be targeting "light" users who will find the basic features and ease-of-use more appealing and less intimidating than Excel. I guess we'll have to see...
Agreed. Excel is by far the "best" program out of MS Office. Word is just horrid. It has a ton of features and capabilities, yes, but for "power" or true professional users, it thinks too much. True professionals don't need the auto-formatting or any other assumptions that add massive amounts of code to your documents. Excel still has some of this, but it seems that its assumptions are much more basic, which allows power users to start from scratch, rather than undo/turn off/reformat every little thing.
I have not used any of the iWork programs, so I can't comment specifically on them as they are. What I would hope for in future revisions of iWork (or any Office replacement suite) is very basic applications (be it word processing, spreadsheets, presentations, or anything else) that have every feature I could ever need plus the ones I didn't know I needed. Nothing forced on me, but everything available to me. And the deal-breaker: Office compatible.
iWork as it is now may not be aimed at true professional users, but I believe in time and with development it can and should be the better alternative to Office. From what I know and have seen from Apple, they should be able to accomplish this and I look forward to seeing their 07 product, even if it contains a few "first tries".