Mossquito 2009 

Mossquito 2009 is a comprehensive IDE that boosts development, deployment and management of SharePoint applications. It's based on Mossquito technology which has been designed for these scenarios:

-site provisioning

-site upgrade

-staging environment management

-issue resolution.

Mossquito 2009 IDE enables offline editing of the SharePoint site and navigation models – i.e. content types, fields, lists, views and other SharePoint artifacts. Mossquito deployment engine provides means for quick and reliable deployments and upgrades of SharePoint sites.