If you've seen Clear for iOS and Mac, you'll know how the gesture based to-do list app is very popular on both platforms. Even with the app being pretty expensive compared to the market, it's been downloaded a lot.
Android users can now have a clone of Clear for them to enjoy. A developer has basically cloned the to-do list app and it's completely free.
I'm sure the creators of Clear won't be happy with this, but then they should have released an Android version of the app by now.