Tony
Take a look at this as it also has the pro's and con's of jailbreaking.
http://news.cnet.com/8301-13578_3-20012109-38.html
Also on one of the Google searches I hit on in the past few days had a link on hot to jailbreak a number of or versions and software revisions.
Here is another link.
http://www.ismashphone.com/2010/07/m...reak-tool.html
It it not the one that I found the other day but I will look for it.