Here are photos of OpenXcom running on Raspberry Pi with touchscreen (Raspbian OS).
Here is OpenXcom on Raspberry attached to TV (resolution 1824x984, no shaders used)
Downsides:
- on 700mHz processor OpenXcom runs slowly
- no sound (I didn't look into this, but it can probably be solved)
- Raspberry isn't designed specifically for touchscreen support, so playing without mouse is problematic