Google earth has a local install, one might imagine that there will also be a light weight local install for this. But the nice part is if it runs through a web browser it will be portable, 100% portable.
What are the chances that all of these applications working over the web will be attacked by viruses on a daily basis?
With the potential to be 100% unavailable due to downtime AND 100% insecure. The hackers will sailvate over the opportunity to compromise this data.
This may not be such a great idea. I can't imagine why I would want this.
The stuff I read was that SUN will offer a google toolbar with every download. I expected a little more, but maybe there's something cooking in the kitchen.