freePBX and openPBX?

Sorry for the duplicate post, but after some deliberation, I thought this might be more of a developer issue than a user issue…

I was just wondering:

openPBX is a fork off the Asterisk 1.2 code base, but in some ways relevant more capable, particularly, cross-platform, STUN, fax, etc.

Asterisk 1.4++ is going to sport its own web GUI along the lines of AsteriskNOW’s GUI.

So, wouldn’t it be a good idea to consider basing FreePBX on OpenPBX?
What are the pros and cons, besides the obvious?

Ronald

Just in case, information on openPBX can be found here: http://www.openpbx.org/