I use android whereas my mates use iphones.
My gripes are:
The price difference.How come android users in uk(dont know about other countries) are charged 3 times more than apple users from buying the game to buying credit?means they can buy and update planes without the cost.
Also the unfair advantage as they are still able to turn much faster than android users since the update.Played on a mates iphone last night and i was whipping around the skies.

I use my cell phone (my touch4g) the new update sucks for me to,reel lagy and slow,turning is horrible now. I'm just not going to play until zup fixes these issues.