ColEm-Android, my ColecoVision emulator, has just been updated to version 2.9.5:

https://play.google.com/store/apps/details?id=com.fms.colem.deluxe (full version)
https://play.google.com/store/apps/details?id=com.fms.colem (free version)

This release adds new hardware settings for selecting PAL/NTSC video and showing more than 4 sprites per scanline (real ColecoVision only shows 4 sprites per scanline, leading to flicker). I have also added support for x86-based Android devices and desktop version of Android (like Genymotion).

• Added "Show All Sprites" option to the Settings, to avoid flicker.
  
• Added "Video System" screen to the Settings.
  
• You can force NTSC (US, Japan) or PAL (Europe) video mode.
  
• Now limiting frame rate to 50fps when in PAL mode.
  
• Added support for Android devices based on Intel x86 CPUs.
  
• Now properly building shared library for each architecture.
  
• Added proper icon for the parent directory ("..") entry.