Any way to disable iOS 5 software update?

iTunes gives you the option go updating; just say no

What are you wanting to accomplish?

If you're jailbroken, install "noOTA badge" to disable the update notification.

If you're not jailbroken, then just update.

Just stay clear of the update feature in your iPhone settings.

There's simple, then there's Apple "Simple."

There is something in Cydia that will hide it. I think it's called updatehider. If you do try to install an OTA update on a jailbroken device, it'll fail and reboot back to your old firmware version without changing anything.

Update hide does not hide the software update. When I installed it it did not find the software update as an app update, in turn I wasn't about to hide the software update with it.

I think the best someone can do is remove the badge so you don't see the red number 24 hours a day anymore.