We are closing in on CTP5 now and I thought I would give you a little preview of what we are working to deliver in this drop.  Lots of UI work has been done around connections, options, and integration points.  Greatly increase SQL 2005 support, better F1 help integration, lots more testing and bug fixing.  This together with a lot of work overhauling the project system.  Overall the product is coming very close to completion from a functional standpoint.  As a whole if you have been working with our prior CTPs you should find this a nice step forward.