Swap Sim Between 4s & 3GS?

[jw6961]

I have a jailbroken 3GS and a 4s on the way (should get it tomorrow)..

I bought one of those sim card adapters that allows you to use a micro sim in a phone that only accepts a regular size sim. I know that as soon as I activate my new 4s it will automatically de-activate the sim that's currently in the 3GS.
I know there's currently no jailbreak for the 4s, so I'm wondering if I can swap the micro sim that's in the 4s into the 3GS when I want to use the 3GS for some of the jailbreak apps (i.e. MyWi).

Any reason why it wouldn't work?

TIA

 

[maturola]

It will work just fine. (with the adapter).

(also, if you are in the US, so your only options is AT&T for GSM,if you are somewhere else where you got multiple GSM carries then your 3GS need to be unlocked)

 

[sbddude]

It will work but dealing with the adapter can be a pain.

I swap between my 3Gs and Android all the time - using a full size sim.

 

[Carlanga]

it works, no worries, no problems in doing so...

 

[LSUtigers03]

I swap between an iPhone 4 and an Atrix and I've never had any issues.