Hello, im happy that freeciv have good support, and i have some ideas:)
1. Better diplomacy like on pc- sharing maps with other players etc.
2.Better graphics(bigger resolution) will be very good.
3.Hot-seat and online muliplayer.
4.Better game performance and lower battery usage.
5.better interface (more clear like on pc)
6.pinch to zoom.(it cant be too much sensitive)
7.Better produckon menu and planing of she(building queque)
8.You can add something like that hold on one technology tree and it will be showed some info about it.
Sory for my bad english.