Any danger of "official" unlocking on JB'd 3GS with 6.15?

[billp]

Hi gang,
I had my 3GS jailbroken and unlocked in Bangkok, mainly to be able to use it in Thailand. That involved upgrading the baseband to 6.15. Back in Germany, where I live, I now qualify for "official" unlocking via Deutsche Telekom - which I've applied for. My question: is there any danger the unlocking will fail or cause the phone to go haywire due to the 6.15 baseband?

If I do the unlock (and presuming I lose the jailbreak in the process) will the 6.15 BB stand in the way of upgrading to iOS 5 in the normal way?

Or should I just remain jailbroken and go through the jailbreak path to iOS 5?

[iYeow]

If you already have iPad bb, then you can restore to cfw of iOS 5, Ultrasnow should be updated for iOS 5 when untethered jailbreak is released.

[i.Annie]

I don't see a reason for a carrier unlock to be disrupted with the iPad bb. I have actually seen a user have this setup. But tbh it's pointless to get a factory unlock bc your bb is already unlockable and can't be changed at the point in time. It'd just be a waste if time and money if any is to be charged.

Edit: it's not like you could go to stock iOS 5 anyway, you'd have to do ad iYeow says and use a custom fw. So you're gonna still be jailbroken. Bc of the iPad bb you have to use a custom fw.