I\'m in the final stages of preparation for publishing my signed APK to the Android Market. In Google\'s doc\'s they say:
10. Test your compiled and signed appli
Try adb install MyApp.apk in a shell from your ./bin folder while the phone is attached to USB.
adb install MyApp.apk
If you experience problems due to certificate errors, you should run adb uninstall your.package.id before installing the new package.
adb uninstall your.package.id