, why not go ahead jailbreak now then when OS4 comes out wait for the jailbreak then do it again ? I m sure many will be doing that just as I will.
Don't tempt me.
When OS4 comes out those that did JB, will have to do it again? How come?
Apple will release an upgrade and when you upgrade it close the jailbreak, one reason is that it is in Apples interest you get or buy everything from them using iTunes, shut down jailbreak and Cydia is out of commission, there are other reasons as well,