sure, here's how it works:
YOU: join as bob
APP: Signup as bob? Confirm by texting back cjm525
YOU: cjm525
APP: Your account has been confirmed
* someone with btc goes to app/API and generates BTC address for your alias
* they send 100 satoshi to that address
Can you clarify
"someone with btc"?
So basically I signup like this, and then people can send btc to my alias...
Is my alias tied to my phone number?
yep, there's an API and a web app where people can generate a BTC address for a given alias. So anybody who holds BTC can create an address for a given user and send bitcoin to them through it.
For now, an alias is tied to a phone number, but it is designed so that eventually you will be able associate multiple devices with one alias. I haven't started working on that feature yet.