Yeah multiple logins are currently setup for the Alpha. It makes testing easier while there aren't many users playing yet. This will be disabled soon. As for the afk host, being able to repick the host is a feature that will be done soon, sorry about that.
I'm actually surprised that this was playable on your iphone. To my knowledge smartphones use flash lite and I didn't think it would work. How was it? Is the UI readable on that tiny screen?