Many remember SPB Shell as the overlay UI that made windows mobile much better and easier to use, providing some great features and eyecandy. It was released for Symbian UI and had received a positive response. SPB has been working hard to bring the UI to Android platform. If you have been waiting to get your hands on this software, you can sign up for beta testing. SPB has moved thisto beta but still, the beta testing is allowed by signing up for it, after which invitation will be sent to test the application. The sign up form can be filled from here.
SPB has also released a demo video of the shell and it is extremely fast. As per SPB dev team, the shell gives 60fps, making it extemely snappy. Take a look: