Microsoft Breaks HTML Rendering in Outlook 2007

I saw this on Digg, but figured it was worth mentioning. Apparently Microsoft chose to use the same html rendering engine in outlook that word uses, so get ready for a dumbed-down feature set. You need to be aware of this if you're sending out any html formatted emails. Here is a snippet of what you need to be aware of:

• no support for background images (HTML or CSS)
• no support for forms
• no support for Flash, or other plugins
• no support for CSS floats
• no support for replacing bullets with images in unordered lists
• no support for CSS positioning
• no support for animated GIFs

http://www.sitepoint.com/blogs/2007/01/10/microsoft-breaks-html-email-rendering-in-outlook/