It won't cause any problems. The best firmware to do it on is 4.1. It's really simple and well worth it. I wouldn't own an iPhone if I couldn't jailbreak it.
yes, put your phone into DFU mode, download the OS for the ipad you want to downgrade to, and in itunes hold shift when you hit restore button. browse for the file and then your donw.
I think that's if you plan to unlock your phone.
on another site it says
This may be for the beta release. I'm going to jailbreak it tonight on my phone. The worst that could happen is I have to do a simple restore in itunes.
what firmware are you running? Also I'm sure a Pentium 2 laptop running windows 2000 could handle a jailbreak. If you want you can meet up with me sometime and I'll jailbreak it for you for free, and add all the sources for the best apps. Tonight I'll be rooting my buddies samsung captivate.
Why can't women be happy with something other than a ring? Marriage is barely sacred anymore. Its about the divorces and the money the wife/lawyers make in the end.
I would do i7 just so its good for awhile. If you get the i3, after a year or two you will need to get an i5, and then the i7. I say skip all the BS and get the i7 and get it for 5-6 years. I'm also an AMD fan
I'm pissed about the change. i usually only do instant, but recently i've been getting DVDs. I don't like the up charge, i've had netflix since it first came out. They will continue to raise the prices over the years.