SWFObject 2.2 has finally released, best way to embed Flash contents.

10 new features:

1. Improved DomContentLoaded emulation for Internet Explorer
2. Dynamic library support
3. Callback method for embedding Flash content
4. Removed embed
5. Improved Flash Player version detection for non-Internet Explorer browsers
6. Improved Adobe Express Install
7. Improved createCSS method
8. Detected user agent properties are now public via the swfobject.ua object
9. Removed conditional compilation directives
10. The option to switch off SWFObject’s default show/hide behavior

More info at swfobject.