The platform only works on either an iPhone or iPad, no Android or Linux devices.
So, no Apple phone, no membership in The Band? I have Android ....and I'm not about to spend big bucks on a new phone.
Aside from that, I don't want to have to move my lips and make noises so I'll continue to type when I want to communicate.
I think I'd use my invitations to invite Mach to join. LOL
Count me out. Interesting idea, though.