Does this require a phone number like the rest of Open Whisper Systems products?
I'll keep using something like hangouts that allows me to keep my contacts when I move as well as a number of other benefits.
I live in Europe, and I've had 4 different phone numbers in the past 3 years.
* If I lose my phone, I've permanently lost my number. * Long-distance calls are a lot more expensive (about 5-10x as much). * Switch companies? Number lost again.
I've had about 5-6 mobile numbers since during the last decade.
Lost your phone? Got mugged? Now you've lost you only identifier on every major IM network out there. You need to contact everyone you know out-of-band and have them update your number.