Interestingly the app image itself does appear to be Metro influenced as is a different screen shot than the one they use for their Android app preview. They just used an Android phone as the shell instead of a Windows Phone.
I've been testing the beta version of this app. It's actually very nice. Those screen shots in the wp7 link are accurate. I would say it's on the motweets side of metro, as opposed to the rowi side, if you catch my meaning.