Supertruck: Thanks for posting this question. I've been trying to get an answer to the same question for days. I've spent hours on the phone with reps who have no clue. (see my post under "coverage").
Does TM monitor this blog?
My under standing:
Canada and Mexico is whatever you can pickup.
Other eligible countries (about 140) is restricted to 256K. (Used to be half that.) Or, is it back to to about 110?
it was really confusing and I didn't get any "clear" guidance on this from T-mobile.
This is one of those "perks" that holding me before I switch to other carriers. (for better coverage, TM still lags around rural and/or smaller cities). I will travel overseas in Summer, May or June time frame, then I will know for sure what it really means.
Supertuck, have you taken your trip yet and, if so, what was your experience with international data roaming? I have TM One Plus, that's supposed to give you IDR at twice the speed of One, up to 256 kbps.
Has anyone used this in EU and is it adequate for GPS nav, etc.?
Out of the 14 countries we have been in since the "free", intl. roaming took effect, 12 were eligible countries. We have been on the original Simple Choice plan from the start. (The new plan would cost us 30% more.) 90% of the time the speeds are pegged right at 110-112 Kbps. Google Maps worked perfectly driving all around Romainia, El Salvador, Costa Rica, Croatia, Montnegro, et al. Even good for walking around Hong Kong. The fact the signals were rock solid probably helped. We used Google Maps to a limited extent in several EU countries (not much driving) - Suisse, Hungary, Austria, Italy.
Even can play some audio streams at times - never tried that much.