Enterprise Library 3.0 CTP Uses Now
The Enterprise Library 3.0 CTP is of significant use to developers even if you don't plan to write code against the 3.0 version. It is based now in GAT and GAX (Guidance Automation releases) and now allows developers to have an integrated configuration experience with Visual Studio 2005. Additionally, there is a capability for strong-naming the Enterprise Library both 3.0 and 2.0 (although I've yet to test it but from what Tom Hollander indicates it should work fine).
Tom Hollander's Blog entry about Ent Lib 3.0