I'm sure you get 10 million of these post and I am sorry to even post it up. I know sometimes this is frowned upon but if I am going to do this I want to make sure I understand things. Also I am wanting to ask these questions in part because I am not certain the answers will be the same in some of the guides since they are for previous firmware.
So, I purchased my iphone 10 days ago (new) and it is through AT&T. I DID upgrade to 2.2

(darn it!)
I am on Windows OS.
1) I saw a guide for 2.2 jailbreak for OS X but not Windows. Am I not able to jailbreak at this time since I have 2.2 and Vista OS?
2) I see ppl stating they cannot make calls now and such. Are these ppl with unlocked phones? Do I need to be worried if mine is thru AT&T?
3) What is DFU mode? I see this mentioned all the time
4) I have read this over and over and want to make sure I understand this:
"DO NOT USE QUICKPWN if you want to have a potential software unlock on your 3G iPhone anytime soon. QuickPwn will update your baseband to the new one included in the 2.2 update. This == bad. Use PwnageTool to create a custom 2.2 firmware. OS X guide will be up soon.
ONLY UPDATE TO 2.2 WITH PWNAGE TOOL AND A CUSTOM IPSW if you want a 3G unlock. If you update with the official .ipsw or the regular "update your firmware" that pops up in iTunes, or you use QuickPwn - your baseband just got updated, which means NO software unlock anytime soon.
DO NOT USE QUICKPWN and ONLY UPDATE TO 2.2 WITH PWNAGE TOOL AND A CUSTOM IPSW if you want to be able to unlock your 3G soon. Just saying it again so you can't say we didn't tell you. "
Is the only caution I am to be concerned about here is that since I have 2.2 already installed and if I use quickpwn to jailbreak then my phone can never (most likely) software unlock? And by software unlocked you mean this phone could not be used with another carrier other then AT&T? If so why is that such a big deal? The only thing I can think of is if I want to sell it late. Oh well? If not what do you mean by software unlock?
5) What is baseband?
I guess the last question I have at this time would be comparability. For those that jailbreak have you ran into issues with itunes/app store/default stuff on the iphone? I guess anything that you can thing of as a side effect? I really want to do this as there is some apps out there I really want but then I am also skeptical now after reading that long post in iphone news forum. Seemed to be a lot of issues.
Thanks for all your help. I'll pick this up fast but just need some help initially. Heading to bed, hope to find some good news tomorrow
