Hello, I have a 3G 32GB iPod touch. I'm currently on 3.1.3, before upgrading to 4.0 I wanted to know what are my best options for jailbreaking without damaging my device. I had also had jailbroken my 3.1.2 with blackra1n previously if that matters. Oh and is it worth upgrading to 4.0 now since Ive been hearing people with problems after upgrading such as battery dying much faster and apps crashing. Thanks in advance.