IE + Chrome plugin = Google Chrome Frame

Google Chrome Frame is a free plug-in for Internet Explorer. Some advanced web apps, like Google Wave, use Google Chrome Frame to provide you with additional features and better performance. (excerpt taken from site..)

Could this be the solution to IE incompatibilities? Can websites ask users to download this 'plugin' to view 'their' content with IE? Possibly, why not?

http://www.google.com/chromeframe