Just as fyi - I was going to sign up for ATT Premier for the customer pricing, but they discontinued the customer pricing 8 months ago. So current or new customer it's $19.95/mth. They did confirm no surcharges overseas. I forgot to ask if ATT had a limit on minutes/month.
Also, Boingo's global $59 covers 2,000minutes/mth, which is basically 33 hours, which is basically 1/hour day/mth. Seems like if someone was overseas & online a lot, wouldn't take much to get through that - at least if they're surfing FT
Cheers.