Skype is now available on a wide range of Android phones.
With the new app, you can make free Skype-to-Skype calls, and send and receive IMs for free, one-to-one or with a group.
To make calls to phones abroad, simply dial the number in Skype and pay with Skype Credit – or make unlimited calls with a subscription.
If you already use Skype on a computer, you'll see your full contact list when you sign in to Skype on your Android phone. If not, you can set up an account and be ready to go in minutes.
You can download Skype from the Android Market, or from skype.com/m on your phone. You’ll need Android OS 2.1 or later – check Settings > About if you’re not sure what version your phone is running.
via Skype Blog