I just got an alert on my tablet with this logo thingy:
I don't recognize it. I don't know the phone number assosciated with it, and the first line of the message that I can read sounds spammy. I'm kind of worried about getting spam on an app that I don't recognize.
In case it's unclear, this logo is the one tha'ts visible in the top left of the android interface (see arrow):
And when I dragged the.. eh.. top bar(?) down, I can see the unknown phone number and the beginning of the message, just as I would with a google chat message or email.