[This post is by Scott Main, lead tech writer for developer.android.com. — Tim Bray] Before Android 3.0 (Honeycomb), all Android-powered devices included a dedicated Menu button. As a developer, you could use the Menu button to display whatever options were relevant to the user, often using the activity’s built-in options menu. Honeycomb removed the reliance on physical buttons, and introduced the
![Say Goodbye to the Menu Button](https://cdn-ak-scissors.b.st-hatena.com/image/square/fcb4a3d291ba2d5c0ad9c927e428a7f6d55485a3/height=288;version=1;width=512/https%3A%2F%2Fblogger.googleusercontent.com%2Fimg%2Fb%2FR29vZ2xl%2FAVvXsEg71hES5cY8YoWPJ5tfRzNUvT_3hSFHomWX6bp-bMN39ZEqlUmF8ptga6EPj0yLvqxibS6wT54GVU8kLAj808G0j06FiggyRzvK9_A5l38tSTAegwbVbJmUTRnqY5o8tMXquytMasZ4hZwM%2Fs200%2FRUNE4057.jpg)