Same here. Pretty unfortunate launch.

It's possibly only available in the US. It's not available in Canadian App Store :(

What do you mean? The website works for me, and links to the iOS app store.

Attempting to install from the app store pushes an error saying it's no longer available.

It's launched only for US now.

It's launched in the UK as well. I suspect for all those seeing 'unavailable' it's just taking time to propagate through Apple's systems.

I'm in the US and I see this error too