Skype for Android hacked and cracked to allow 3G calling
That Skype app for Android we thought was locked down to Wi-Fi only has just been cracked a few days after its release. The .apk is provided by xeudoxus over at Droid Forums, he tweaked it to get that pesky 3G block off, and apparently its working like a charm. So now all we need is an .apk that works on the Samsung Galaxy S.
Source: Droid Forums (1), (2)