[bertil]

> Maybe you can do something similar to replace boarding passes for airlines?

I haven't seen it on Android Wear yet, but Norwegian (low cost airline in Scandinavia) has that on their (iPhone) app. The app is pretty much only that actually: you can't use it to buy, but you can check-in, see gate information and have a QR boarding pass.

Actually, the apps of most companies that I've used in the past year (Air France, Luftansa, Finnair) offer the same.

[bergie]

There are two airlines that already provide this on Android Wear: American & Delta.