Let's BLOG it out.. HBO's Entourage back for a 5th season?

Too many contrasting blog posts out there on if Entourage season 5 is shooting now or not. We haven't seen the boys around for a while in the media which makes me think they're filming. This blog claims they hadn't started filming as of 3-22-08. So, they could be by now and with a desired launch date of September 28th (pushed back from the original rumor of June) I wouldn't doubt things are almost 'in the can'.

So, at least we can look forward to 12 more one hour episodes of this HBO gem. I also heard a rumor that the writer has enough material up to season 8 (if HBO is still buying).