Nope.
I went to South Korea a few months ago it was like my phone had no sim in it. With telus/rogers you'd get a "welcome to whatever country, data roaming will cost you x$ mb", the time zone would update, the carrier (or a different one) would still appear, and you'd get emergency alerts (if the countru used them and if there were any). But with Public Mobile it was just like I had no sim in my phone, no text with the option to roam, no time zone update, no carrier appeared on my phone (not even Public Mobile), and no emergency alerts. It was like my iphone was a wifi only ipad.
This isn't a bad thing, you can't accidentally roam, but it's just something to be aware of. I always get a local sim when I travel anyways.
