Why are all the new flagship ICS and JB android phones still using a menu button?

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http://androidforums.com – I find it really upsetting that all of these new phones like the galaxy s 3 and the optimus G still continue to go with a menu key, when clearly the android 4.0+ software was designed to get rid of it. As cool as these phones are, it just makes me feel like they're overcharged 2.3 devices instead of true next gen android phones. Maybe I'm just being picky, but seeing a menu key on upcoming flagship devices like the optimus g really turns me off, even with all the other awesome specs that come with it (13mp camera, true HD ISP display, s4 quad pro chip). It just feels like the manufacturers a (General)