Android native menu may opening when pressing menu button while using PhoneGap.
This may sometime caused while using the latest cordova-2.6.0, Even if the DroidGap class which is used for the phonegap development contains the default android class Activity in it, which is a must class for the menu function, the latest cordova has some issue with it.
It is better to use the cordova-2.5.0 version rather than 2.6.0, which will solve the problem.
