I've been waiting for this for some time as it looks very promising...
Thx to http://markharrison.co.uk/blog/2005/02/information-bridge-framework-15.htm
Microsoft Office Information Bridge Framework 1.5 is now available ... with IBF developers can create and deploy custom solutions that integrate with an organization's existing IT infrastructure. It reduces development costs and increases flexibility, manageability, security, and extensibility of Microsoft Office-based information integration solutions.
Download
Resource Kit
From Patrick ...
IBF 1.5 Download
IBF 1.5 Resource Kit
New Features in IBF 1.5