Essentially, Google Chrome Frame is an open source plug-in that brings HTML5 and other open web technologies to Internet Explorer. Google describes Chrome Frame as:
This, however, won’t solve the problem because most IE users won’t install Chrome Frame. Google has a plot for that as well â€“ Google Wave, the very much awaited real-time communication platform which is all set to be previewed next week. Internet Explorer users who intend to try Google Wave will be asked to download and install Google Chrome Frame.
Google justifies this strategy as:
"In the past, the Google Wave team has spent countless hours solely on improving the experience of running Google Wave in Internet Explorer. We could continue in this fashion, but using Google Chrome Frame instead lets us invest all that engineering time in more features for all our users, without leaving Internet Explorer users behind."
Great move by Google for both users and developers. Internet Explorer users will be enticed to try Google Chrome (or Firefox, maybe). Even if they don’t switch over, Chrome’s rendering engine working within IE means lesser pain for the developers. On the other hand, Microsoft is trapped. If they somehow try to cripple this plugin from running, it’ll greatly damage Microsoft’s reputation.