Hi. This has been discussed many times before. Please, search before start a new thread. Thanks.
BTW, you can read this thread for info: 1.1.3 soft update
That's why it is called a SOFT upgrade, your baseband stays the same. But there are a few problems... it is a bit buggy, and there are a lot of ways to do it (NAte's method, Dev Team's, iClarified, etc.)
An unlock for 1.1.3 is almost complete (for upgraded 3.9 BL phones), if I were you, I'd wait till it's done, upgrade thru iTunes, and run this new unlock.
You will encounter a LOT of bugs and problems if you upgrade to 1.1.3 right now..
Just some advice =)
(and duck is right... use search, please)
Do a search for the love of gawd n00b
I had a quick search, and while people said it remained unlocked others said that theirs locked/failed or messed up their phone in some way. I just wanted a solid answer, hence my asking.
Cheers for the info tho - appreciated.