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Apple has seemingly found a way to block Android’s new iMessage app
(www.theverge.com)
This is a most excellent place for technology news and articles.
iMessage can only send SMS messages to non Apple phones, which suck. And if you have friends in other countries get crazy expensive and suck even more.
I actually had no idea anyone still charged money for SMS
Also if you're in another country almost everyone charges for roaming sms but you can use messaging apps on WiFi for free.