If you get the voice postpaid simple plan, you can add a tablet at the $20 per month rate and they will discount it by $10 thereby making it effectively $10 per month. And the data that you buy is irrelevant to using it internationally, you get all you need - just throttled.

As an FYI I am in Toronto and ran speedtest - server in KC

Ping - 128 ms
Down - .13 Mbps
Up - .12 Mbps

Nobody is going to watch your Slingplayer with this but for e-mail and maps, it'll work. I came through customs and had turned it on as we deplaned - took some time to connect to the provider but when I got out to the curb, all my e-mails had been updated and downloaded.