Hi,

I am working on mobile payment solution for tips and donation which might work on scenario you described.I haven't launched yet but would like to talk to you to understand it better. Ping me on rajeevpra@gmail.com if you are interested.

Rajeev

We are also counting on ease of use which enable single touch from all of screens, you must have noticed microphone icon everywhere if you have downloaded the app. Having said that its a good suggestion and we can definitely call it out on our website. Thanks!

I would say ease of use and the fact that you can send messages to non users.

Okay I overlooked the fact that you can message non users. Now I see how it can be useful.

Yes you can send messages to friends who are not App users.