PCE.emu v1.3.0 is released. PCE.emu is PC Engine/TurboGrafx-16 emulator written in C++. It uses the emulation backend from Mednafen and is built on top of the Imagine engine. The source is released under the GPLv3 license.

Coming in future updates:
Additional speed optimizations
Updated GUI with more control & display options
Native Wiimote support (may require Android 2.0+, I'm still looking into it)
The Android version is designed for the Motorola Droid/Milestone, but should work on devices with similar specs. Actual speed depends on a combination of CPU clock speed and the how fast textures upload to the device's GPU. The PS3 version will run on any homebrew-capable console. The iOS version runs on any compatible device but an ARM Cortex-based CPU is recommend (iPhone 3GS and newer). Get it for your platform on the Downloads page.

Features:
Accurate emulation and high compatibility rate.
Zip file support
CD emulation via loading cue files, you must have a system card rom named syscard.pce in the same directory as your cue files.
Cue files may use external audio tracks in Ogg Vorbis & Wav (PCM, ADPCM, etc) formats (not working on PS3 currently)
Optional on-screen multi-touch controls in addition to keyboard controls (needs Android 2.1 for multi-touch)
Backup memory and save state support, one auto-save and one manual slot for save states
No user activation or other nonsense ;)

Performance Notes (as of version 1.3.0):
Android : 55-60fps with hucards on a 550Mhz Droid running Android 2.2. CDs may need slight overclock (600-700Mhz) to run at similar speeds depending on the game's screen mode. On-screen controller can cause a small speed hit so disable it when not in use, will be optimized in the future.
iOS: 60fps on iPhone 4 with hucards & CDs (~50% cpu utilization). 20-30fps on iPod Touch 2nd gen.
PS3: 60fps with hucards & CDs.

Default Controls for Android:
D-pad : navigate menus (Up & Down), Left to go up a directory in file picker, Right to select highlighted entry
Z, X : Buttons I & II
Space : Select
Return : Run
Menu : open/close the main menu
L : go directly to Load Rom menu
Q : Save State
W : Load State
Search : Fast-forward in-game
Back button : Exit game or go back in menus

Controls for iOS:
Touch top-right corner : open the main menu
Touch bottom-left corner : Fast-forward in-game (deactivates upon next input elsewhere on screen)

Controls for PS3:
D-pad : navigate menus (Up & Down), Left to go up a directory in file picker, Right to select highlighted entry
Cross : confirm/select menu entry, Button I
Circle : cancel menu entry/go back, Button II
Select : Select
Start: Run
L2 : open/dismiss menu
R2 : Fast-forward

Currently known issues/bugs:
No international character support in gui
Not really a bug, but when running on a case-sensitive file system make sure your CUE file specifies references in the same case as on the file system.
PS3: only 1 controller is supported
PS3: loading a CUE file with external audio tracks causes the system to lock up
PS3: sound is not synced properly, causes slight distortion in the audio

Download: PCE.emu v1.3.0
Source:Here