Tony007 - Thank you. I stand corrected: It appears the W/P 7 does indeed still use a Focal tweeter. My memory slipped a cog, and I thought there was a tweeter switch between the 6s and the 7s. It had not in fact happened yet. Here's some relevant discussion I dredged up:
http://forum.audiogon.com/cgi-bin/fr.pl?cspkr&1098088002