We were curious ourselves, so we did a little bit of research.
Turns out, ZOHO offers a comprehensive suite of web-based office applications. Their portfolio includes the standard set of productivity tools such as word processor, spreadsheet and presentation capability which, coupled with their Email and calendar platform, seems to put them on par with Google Apps. But Zoho also reaches to include more sophisticated tools such as CRM and an online Accounting platform.
The India-based company has apparently been offering cloud-based collabortaion tools since the olden days of 2005 and seems poised to present a challenge to its main competitors Google and Microsoft.
Intrigued? Us too! We're going to continue to keep our ears to the ground to learn more about this platform.