Hi Newbie question. I've read a lot on this and am a little confused. I have a 3GS running 3.0 that I want to jailbreak. I know my options are Redsn0w or Pwnage Tool. 1. If I JB in-place with Redsn0w, can I use Cydia's put me on file to be able to go to a JB 3.1 in the future (when 4.0 comes out)? 2. If I go with Pwnagetool, I'm assuming I can create a custom 3.1.x firmware without the baseband on my mac. Then I can do a DFU restore on my windows machine (old mac, no iTunes running there anymore) connecting to Apple Servers as normal and get a JBroken iPhone. Then I can use Cydia's put me on file feature. 3. Related question - when the 3GS came out, everyone were asked to do a DFU and non-DFU restore to capture some IBSS and IBEC files. I did this, but I presume these are useless since no tools were made that are capable of exploting this? Thanks in advance, Maky.