The EU has been throwing its weight around, trying to force interoperability between the major digital platforms. But companies can work at the issue too – companies like Sunbird, which may as well be called “phoenix” since it’s back from the dead.Sunbird has built an Android app that promises proper iMessage support. Is that still necessary now that Apple devices support RCS? The company points out that RCS messages still appear in a green bubble to iPhone users. Also, some features like reactions, replies and iMessage group features still don’t work properly when RCS gets...