Thinking about buying the following device for international travel. Need a phone, under $100, for calling and texting only. Not concerned with data.

Largely, I'm wondering how widespread this phone would be able to be used...

Looking for max coverage throughout the world. Traveling international 4-5 times a year, anywhere from Japan to China to Peru to Colombia to Middle East or Europe.

My primary phone is an iPhone 5, which I'll use when I'm under WiFi. Plan on buying country-specific SIM cards and throwing them in the phone.

http://www.amazon.com/Blackberry-Cur...ackberry+curve