Not sure how many have seen the following Redhat video.
Personally, I'm not a big fan of this kind of FUD, especially if Redhat wants to paint a picture of being the honest alternative to the likes of Microsoft.
I think the open-source world should win on its own merits and not by spreading FUD. That's very much been my philosophy with pitching PHP. If I bash Java here and there, I try and keep it real and give real examples :)