Hello Simon,
Bartholomew's Projection comes pretty close, but it is not a true polyhedron.  
You've probably already hit this if you've been Googling but, an example is 
shown on this page:
http://www.progonos.com/furuti/MapProj/Normal/ProjInt/ProjStar/projStar.html

Have you tried searching "tetrahedric" instead of "tetrahedral"?
Lee Conformal Tetrahedric Projection:
http://www.ilstu.edu/microcam/map_projections/Miscellaneous/Lee_Conformal_Tetrahedric.pdf

Good Luck!

Regards,
Sam Knight

Applications Specialist
Blue Marble Geographics

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----------------------- Original Message -----------------------
 
From: Simon Roy <[EMAIL PROTECTED]>
To: Mapinfo-L <[email protected]>
Date: Wed, 21 Jun 2006 16:15:38 -0400
Subject: [MI-L] Tetrahedral projection
 
Hi,

  I'm looking for information on tetrahedral projections.  I did not 
find much on google and directionsmag...  Can Anybody can help?

Thank you!

Simon

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