I don't know if anyone's noticed, but in Pages 2, the word count feature (on the Info tab of the Document Inspector) excludes words in tables. So if you are writing word-count-critical documents that includes tables, you can't rely on Pages' word count.
[robg adds: I confirmed this with a simple test document--all words in tables are ignored for the word count. Depending on what you're writing, and who you're writing it for, this may or may not be a problem ... but at least we know what's included and not included. Neither Pages' help nor manual says nothing about this fact.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20060905194734570