Google's CR-48 is all about cloud computing. What is cloud computing? Here is a video that will help:
Using the CR-48 has forced me to become more acquainted with the cloud. There are several useful sites out there, and you can do almost anything right in the browser. I use Google Docs more and more. I even added the extra storage (20 gig) for only $5/year. That 20 gig spans across all of my Google products, including Google Docs, Gmail, and Picasa(for my pictures).
Here is another little video I think you might enjoy.