@Miharu: MS Access' format is understood by... MS Access alone on Windows only. And even 'better', full interoperability will be limited to people with the same Access version running on the same Windows version. That's not really interoperable. Compare with the following...
When creating a "worthy" database in OOo Base, you'll probably end up installing MySQL somewhere, and use Base as a forms and states editor. Until you do, you won't be able to make use of table joins, complex subqueries etc. (OOo Base's integrated DB engine is VERY basic).
So, at that point, you'll have a MySQL database on one side, and a form file on another. That database can have:
- an HTML frontend,
- OOo Base's frontend,
- another DB frontend...
And, since OOo runs on Windows, Mac, Linux and Solaris, you can access said DB from any system, whether there's OOo on it... Or not.
Calling MS Access interoperable is like saying the Sun is cold.
Now, about differences between documents opened under OOo and MS Office...
Create a Word document in Word XP. Open it under Word 2007 on another machine with a different printer. Oh goody, the layout's gone crazy!
Open it under OOo. Yes, it's gone crazy too. But not worse than one Word version compared to another. Why is that?
The algorithm used to draw a document in MS Word changed on each and every version; those changes are hardly documented, and took into account the default printer on the computer used to create the document. So, OOo Writer has to guess what Word version was used, what the printer measures were (they weren't stored in the document until Word 2003)... And it can't. Because that data ain't stored in the Word document.
So, OOo gave arbitrary values (reasonable approximations) to the measures used in all Word versions on all printers. That means no perfect pixel-to-pixel fidelity, but it also means that variations due to different document sources won't impact it too badly (while this can CRASH Word).
If you want perfect fidelity, you should export as PDF - like OOo does. Even better, OOo allows you to edit a PDF (with a free extension).
@randomizer: about Calc being slow... You should send a slow document to the OOo authors so that they can find what makes Calc slow, they might just solve it for OOo 3.2.1. Or it may actually already be solved in Novell's OOo build.
@adamovera: I guess we have different expectations on what a publishing too is. For me, a publishing tool is the stuff I'd use to make a flyer, a pamphlet, a book, a newspaper, whatever. Scribus does that - almost as well as Quark Xpress. Publisher doesn't. And yes, I've tried all of them (Xpress on a 256-pages CMYK book containing mixed text, ads and shapes, Publisher on a 128 pages mixed content in BW, Inkscape on several jobs). A publishing tool is not, however, a collection of templates; for that, you may as well get OOo templates: either Draw or Writer have good enough layout and style capabilities, with PDF export, to do a good job on those "fast" edits.