Wireless as in 2,4 GHz through hostmode, or 2x bluetooth?

Anyway, it all depends how the device is recognized. If it's acting like HID keyboard, you will have problems (as each device will send same keyboard event on pressing same button). same for HID mouse, afaik.

If it's registered as SDL joystick, you shouldn't have problems. Anyway, it's exactly the same as with desktop GNU/linux distro.

Cheers,