Emu XL-7 & MP-7 User's Group

Hello,
  I've got an XL-7 with its stock ROM, and a Protean Drum ROM on its 
way (Thanks Tom DJ61).  After I install the Drum ROM and download the 
patterns and songs to my XL-7 will I essentially have a PX-7?
  I'd like to have the Proteus 2500 in there also.  So again, if I 
buy the Proteus Pop ROM, download the patterns and songs, will I have 
a Proteus 2500?

I've noticed E-mu has released an X-Lead Version 2 ROM, I assume for 
MP-7 users.  When will E-Mu release the MP-7 ROM?  I understand the 
Pure Phatt ROM isn't the same as the stock MP-7 ROM, so the patterns 
and songs for the MP-7 will not work with the Pure Phatt ROM, am I 
correct?  Thanks!