The GameDev Lounge 00000011

[iyenal]

2D or 3D graphics ? For 2D, I use letterbox scaling or normal scaling with wide background and objects extended beyond layout borders so it's impossible to see black borders; and for 3D, I have 2 cameras (16:9 and 4: 3 with different field of view) that are actived depending of the phone screen.
But in general, you have to try on simulated or real devices.