Will there be a iPhone software update coming for T-Mobile carrier support?

Just wondering if an update will be released for iPhones, and will have something to do with T-Mobile, since iPhones come to T-Mobile today.

Thanks

Added (1). What is the name of the update?

I use an unlocked iPhone on T-Mobile and on Monday, I got a carrier update. It listed T-Mobile as the carrier instead of just saying Carrier 14, it enabled Visual Voicemail and a few other changes.

If you have not got it yet, go into Settings, General, About- just wait in there for a few seconds and it should "push" the update to you. A screen will pop up telling you it is available and asking you to accept if you want to install it. You have to have a data or Wi-Fi connection and at least 50% battery life.

It already has come out. The ones being sold from today will already have it. It would be a carrier update, not a firmware (iOS) update.