Hi all.
I wrote a little article about the HP-41 on my site:
http://dudegalea.com/2011/01/26/hp-41-t ... lculators/
I'm quite pleased to see that it now appears 7th in the list for a Google search on "HP-41".
I did own an HP-41CX, but last year I donated it to The National Museum of Computing, at Bletchley Park.
I now use the awesome i41CX+ app on my iPhone and iPad.