[boost] Review Request: Generalization of the Pimpl idiom

I hope I am following the submission procedure correctly. I read the guidelines and I seem to do what is needed. Apologies if I missed something. The code is in the Boost Vault called Pimpl.zip It compiles with GCC 4.1.2 (I use it on Ubuntu 7.04) and MS Visual Studio 2005. Documentation is at DDJ site: http://www.ddj.com/cpp/205918714 Any questions/suggestions/critique - vladimir.batov@wrsa.com.au Thanks, Vladimir