Google Docs & Spreadsheets: Now with charts, range names and comments!

Google Docs and Spreadsheets just introduced new features today! Check them out here:

• Charts!
  Now it's easy to show data in simple graphics to friends or co-workers with charts. Select from various styles to meet your visualization needs. Learn more
  
  

• Range names
  Now you can reference a range of cells in any formula by a nickname (like "zipcodes") instead of cell letters and numbers (like "A2:M33"). Learn more

• Comments
  Feel like leaving a comment for yourself or a friend on a spreadsheet? Now you can leave comments on any spreadsheet cell for all to see. Learn more

This just made their software that much better. I wonder how the upcoming PowerPoint software will incorporate with these new features.