I've just uploaded to the new sandbox-vault a first cut of a Boost.TR1 library, currently it only handles chapter 2 of the TR - so basically only shared_ptr is usable at present, but now that I've got the basic framework sorted I should be able to wiz through the rest of the TR in fairly short order. The zip is at: http://boost-sandbox.sourceforge.net/vault/index.php?&direction=0&order=&directory=tr1 And the docs are online at: http://freespace.virgin.net/boost.regex/tr1/tr1.html At this stage I'm just trying to get some feedback on: 1) Is this worth doing? 2) Are there any problems with the implementation method used (using declarations to import boost code into std::tr1) that I haven't spotted? Anyone have any "over-my-dead-body" moments? 3) How should this be tested? At present I'm using cutdown concept-checks only (on the basis that the Boost code is tested by each libraries test suite already). 4) Anything else I've missed. Thanks in advance for any feedback you may have, John Maddock.