iPhone Multiple Profiles | Phone/Device Issues and Features | Consumer forum

So I now have an iPhone with no carrier lock. I have the speakout profile loaded and it works great. I travel to the US frequently and have a AT&T sim for go phone (pay as you go).

The problem is, I can only have 1 profile loaded on the iPhone. When I travel I will have to have only the AT&T profile loaded and not have data access for my Canadian portion of my travels. Unless there is a way to configure the APN settings from within the phone? If not it's back to the Blackberry.

It's a 3G phone but I'm going to get the new 5G (4GS?) when it is released. Can you load multiple carrier profiles on the 4G? Has anyone tried to load multiple profiles?