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Global text = anywhere around the globe with no restrictions
FYI All means everywhere "allowed"; unfortunately some countries block, or have incompatible systems.
One small point of clarification also: international texting didn't just get introduced at Public Mobile, it just used to be an option in the previous plans--you used to be able to pick no texting, Canada-wide texting, or international texting. Now it's all or nothing--no texting, or global texting. The choices were simplified, for the better IMHO.