Google Earth is Embeddable

this is big big news. you can now embed google earth into your website via a plugin.
http://code.google.com/apis/earth/
wow, you can even make games inside of it (i didn't know this was possible!)

i wonder what the usage rates for google earth were? is it an intractable problem to have a downloadable app?

here's a great summary from Orielly:
http://radar.oreilly.com/archives/2008/05/google-earth-plugin-api.html