I have a 3 different versions of a Adobe Flex Tag Cloud. For Flex 3 I have one that uses the flexlib FlowBox component. I also created a 3D Tag Cloud similar to the one on WordPress. And a couple weeks ago, I created a Flex 4 Tag Cloud Layout that makes use of multi-line links depending on a dynamically sized container.
Here is one of the urls and you should be able to search and find the others at the same place:
Adobe Flex 4 Tag Cloud Layout
http://flexadmiral.com/blog/post/2010/07/22/Adobe-Flex-4-TagCloud-Layout-with-Multi-Line-Tags-from-XML-Data-Provider.aspx
Any or all of these might be able to help you. Let me know if I can help answer any questions.
Shawn