asterisk users - Jun 2004 - Difference between Tormenta/Zapata and Digium Hardware

I am interested in possibly building a few Tormenta 2 Rev B cards for
myself.  Before I get much further, though, I would like to determine
the difference between the T2B card and the Digium Quad-span T1 cards.  
 
I get the general impression that they are similar, but the Digium
hardware is improved.  Is this the case?  Are the drivers for the T2B
valid anymore?  
 
Thanks for any advice or assistance.
 
        Sincerely,
        Trevor Hammonds
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20040624/827fb4d2/attachment.htm