SharePoint 2010 Features
Safely deploy custom code without adversely
affecting your production SharePoint environment.
Test with confidence
Hosted SharePoint 2010 site administrators can now test custom code in rights-restricted environments that are limited to the site collection of a development-only deployment.
Solution monitoring
Problems occurring in the sandbox will not affect the rest of the SharePoint environment and can be closely monitored by administrators and developers alike. When development is finished, easily migrate your sandbox solution to production.
Improve your performance
Restrict quotas to improve the performance, flexibility and scalability of your Hosted SharePoint 2010 solution.