Sam Morris
Are Your Country’s Cellphone Plans a Rip-off?
https:/
The cost of mobile data plans—and their quality—varies widely across the globe, according to data assembled by The Markup, and often, you don’t get more for your money.
It's pretty good here in France, fast enough and really cheap.
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older link:
Don't design for mobile -
newer link:
This One Weird Trick Tells Us Everything About You