iOS 5 will it make the iPhone4 slow

[jane01]

No not at all but the only thing is if you are using a GEVEY chip so you don't have to get the iPhone unlocked to use a diff network provider. I.e. if the iPhone was locked to Orange and they will not supply the unlock code, and then the only way was to use the above chip.

But if you upgrade to OS 5 this will stop working as i found.
I had a email from applenberry as follows:
Dear customer,

There is currently no way to unlock iOS 5 nor have a got word about an
unlock from manufactures. If we do, we will post it on our website.

-applenberry

On 10/18/2011 5:29 AM, Sales wrote:

[Liteace]

Ive just done a software upgrade on my 3gs to OS5, couple of new icons on screen, not a massive difference, its reasonably fast, no slower than before, this Icloud software will not work on Win XP so I cant try that out

Will OS5 noticably slow down on a 3Gs iPhone

Have a read off ALL the posts in the thread and the answer is there for you

[digitalfan]

some of my friends say yes...

[andysim]

Hi There,
I have upgradr=ed a 3GS and my 4, and both are working well. the 4 has more new features available, and I am pleased with some of the new features.
Speed seems at least as good as before. I would do it, back up first, you can go back ( I think)