Signing Android Application
Before releasing Android application to Google Market is required to sign it. During application development Android SDK is signing binaries all time with debug certificate. But debug signature does not alow to publish application, it should be a new signature.
Google has minimized the hassle of getting applications signed. There are no need to go to a central signing authority like Verisign to get a signing certificate. Developer can generated the certificate by himself, and can sign it using the jarsigner tool that comes with the Java JDK.
That is a good news for developers comparing with other developers toolkits. For example to have access to functions like internet access in Sprint Sumsung Instinct SDK is required to buy Verisign certificate.