ThinkSecret reports [1] that Apple will release a spreadsheet application with the '07 edition of iWork office productivity suite.

The site even provides screenshots of the so called "Numbers" or "Charts" application.

Apple's spreadsheet application is said to include more than 200 features such as templates and tight integration with the other iWork applications (Pages and Keynote) and iLife (iTunes, iMovie, iWeb, iDVD, Garageband).

As for the two other iWork applications, ThinkSecret had provided reports on Pages 3 [2] and Keynote 4 [3] earlier this year.