nuthin - 8:13 am on Jul 18, 2011 (gmt 0)
I have been using sub domains for years on a few of my sites.
I'm of the opinion if sub domains are treated as unique domains and most of the authority for domains always end up on the home page, then if you implement an effective internal linking / off-page strategy to parse internal PR onto the sub's then one would assume the sub domains will gain more authority than an internal page.
I'm with netmeg.
When you find something that works DON'T TALK ABOUT IT. #fightclub
If talks about using a sub-domain strategy kill my sites, watch out. :-) Argh......