What are some usability differences between Salesforce.com and Zoho CRM?

The following features are not included in Zoho CRM

1. Lead Queues

2. Call Logs

3. Adding more custom fields. We restrict to 120 custom fields

4. Field Level Validation

5. Reporting by week/month/year

6. Custom Tabs/Objects. Creating new tabs & fields

7. Integration with Gapps

8. Integration with Google Adwords

9. Separate Document Tab

10. No offline

11. Mobile edition

12. Territory Management