That's true, but don't forget to mention Adobe's totally inconsistent use of this feature - confusion follows:

1. Alt/Command + Scroll up is zoom out in PS;
2. Alt/Command + Scroll down is zoom in in PS;
3. Alt/Command + Scroll up is zoom in in Illustrator;
4. Alt/Command + Scroll down is zoom out in Illustrator;
5. Alt/Command + Scroll up/down is sideways scroll in InDesign;
6. CRTL + Scroll up is zoom out in InDesign;
7. CTRL + Scroll down is zoom in in InDesign;

and it's really frustrating, because you usually work with multiple Adobe apps at a time, and you always just keep mixing them up.
wbw:

ati

my little blog:
http://www.notv.hu

Yeah that's quite true...and when you are at really high zoom rate it doesn't work well at all, specially in Illustrator CS2

www.TheAdMad.blogspot.com

When zooming in and out, InDesign uses your cursor location as the point to zoom to. For example, if your cursor is in the top right of your document when you zoom in, it will zoom closer to the top right, etc.