VSTA is out!!
So Visual Studio Tools for Applications is out! I am excited about the product and Im sure it will be useful for the large enterprises and ISVs who want to provide extensibility mechanisms into their applications.
While VBA has been the cornerstone of Microsoft's customization technology, VSTA marks the beginning of the era of the "managed" (.NET) domain of customization strategies! It comes with a runtime environment to facilitate application customization and a familiar VS-like design-time environment to write customizations (add-ins).
Check out more details on the VSTA Blog.