Recently i have seen some android apps that runs on SDK < 3.0 but they have the same look of ICS applications.
Here is an example: https://play.google.com/store/apps/details?id=net.hubalek.android.reborn.beta
If you run this app on an old platform (2.x) you still get the feel of ICS.
So, Does any body know how to do this ?
Also, I have seen a related link on android.com but i couldn't make good use of it. Here is the link: http://developer.android.com/design/downloads/index.html
Thanks very much :)