iPhone devteam releases browser-based 4.x jailbreak

It doesn't work in the iPhone simulator running 4.0.1 or 3.2.1.
It almost directly crashes every time

i just bought an unlocked iphone 4 16GB from online store and it is authentic,just costs me $392,i conld not believe that and worried about whether it is original,but when i got it ,i am very happy.you may have a look at it from http://www.trade-whole.com/apple-iphone-4-black-16gb-unlocked-mc603ba-gsm-cellular-phone-p-366.html

Man oh Man it was so easy. I had a 3GS using 4.0 and could not get it unlocked using the paid services. (got my money back). But when Jailbreakme.com came out It was 1 2 3 and done. Jailbreak first then loaded Ultrasn0w 1.01 and it was loading My wifi and hooking up my Ipad. It worked no problems at all.

yay! let's use a critical security vulnerability in Safari font handling to jailbreak....and hope no other bad internet people take advantage of *apple's piss poor security*

Anyone else getting what look like dead pixels on the Apple screen whenever Winterboard refreshes the Springboard? They appear towards the top where the status bar eventually ends up after a refresh...I don't think they're dead per se, but odd nonetheless. They appear as colored pixels--tried to take a screenshot, but was denied.

Is this just an indication that it's jailbroken??? Am I alone?

Thanks to anyone that can shed light on this...

After jailbreakme.com jailbreake skype stopped running in the background on my 3GS. Reinstall didn't help. After the jailbreake I had a message pop-up saying skype will only run on unmodified iPhones/iPod touches.

Anyone had the ssame issue?

I trust saurik, dev team. Hell, I even trust geohot. But that doesn't stop other malicious crackers from breaking and stealing my phones' data, USING THE SAME PRINCIPLE, when I stop by any other random websites. What, you thought only the jailbreak team is clever enough to figure this out?

This is a serious security hole, forks. I own a 3G and I was shocked to know that such hole exist on Mobile Safari, or even UIWebView. Apple must fix this ASAP, top priority. (Alternatively, the jailbreak team put a fix on Cydia so that we can install.)

@mark, you're the one who has no idea what you're talking about. Idiots/fanboys like you make Apple think they don't need to improve.

I just jailbroke my iPhone 4 (for the first time) and installed MyWi. It told me it needed to reboot the phone, but now it just hangs on the black screen with the Apple logo. What gives??

I need to get around activation on my old 3GS in order to jailbreak it. It currently has my old SIM card sitting in it (I upgraded to iphone 4, with the mini-sim). Can I still activate the old 3gs with the card that's inside it? Can others activate thiers with my old sim card, too? I'd love to be able to use that phone on other carriers.

Servers have been overwhelmed by the numbers of people jailbreaking today. It has been up and down all day. Give it another day or so or keep trying.