Drupal 7 Port

This is solved in D7 core according to
http://drupal.org/node/228818#comment-2647054

Thus, a D7 version of unlimited_css is not necessary.

sorry, but I'm testing a D7 website and some CSS declarations simply don't work. how do I make them show up in IE 8?

I need more information, to say anything meaningful about this.
First thing is to look into the html code your site produces. How many stylesheets do you see there? Which method is used for the embedding?
Do you have this problem with aggregation, or without aggregation?

sorry.

yes, I've switched CSS aggregation on and I'm using the latest stable Omega release. in that theme, stylesheets are embedded via <link>.

I've noticed the CSS files are aggregated, so there's not even close to 10, let alone 31.

thanks for the support!

It should be noted in the project's main page that this functionality has been fixed in Drupal 7 core. Now people (like me) will be wondering how I can migrate to D7 because this module doesn't mention anything about D7 development status.

#5, good point!
Fixed.