Gezz.  I was taking a causal  look at community feeder and found this article…

iTunes 8.0 iPhone Jailbreak Detection Thwarted from iphoneFAQ web site.

Basically, what they are trying to do is force a compromised sync (perhaps sync lock in the future?) if jailbreak is detected. Give me a break. I’m soooo grateful that I almost never use itunes for my iphone. I manage getting images using the PC camera sync and I could do mp3 by hand if I needed to. Based on the article, the jailbreak people will have a patch to get around it. Yup, I would bet on it. So even more, I’m not going to update anything for awhile!  

Read more on this here

http://www.iphonefaq.org/archives/97464