Diversity of hardware may not stop most app’s but seriously playing Annoyed Avians is not the same as running a FOH mix for 5000 people. Would you be happy with the occasional hiccup or crash out?
Personally I wouldn’t which is a shame as I love my Samsung Note 10.1 and would love to me able to use it to tune a mix from time to time.
Bottom line here is that A&H have a limited amount of resources to spend on projects and I guess they’ve prioritised what they think is important for most customers i.e removing glitches from firmware and adding new features. Yes it sucks for those of us that don’t like buying Apple but thats life, get over it 
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Just remember kids no matter how good your mixing is you can’t polish a turd…
