Yeah, I assume that works if you want to test how cards display, though there does not seem to be any interaction. Considering the API only allows viewing card

Yeah, I assume that works if you want to test how cards display, though there does not seem to be any interaction. Considering the API only allows viewing cards, taking pictures, sending your current location and taking textual input, there's nothing that prevents them to have a glass implementation on Android to test things out, other than the time/resources to develop such an implementation.