New Post: How to deploy mutli project solution using BTDF

Again, the Deployment Framework for BizTalk deploys entire BizTalk applications, not bits and pieces. If all 60 of your BizTalk projects end up in one BizTalk application, then the Deployment Framework will always deploy all 60 at once.

Here's a blog on a more complicated way to structure things to accomplish a more granular deployment (unsupported).

Thanks,
Tom