Thanks Ala Hadid for submitting news
My X Nes 3 is released. My X Nes is a portable open source NES/FAMICOM emulator written in C# using XNA Framework for windows and Xbox 360 platforms. My X Nes is a port of My Nes emulator.

My X Nes 3 Changelog:
- Added quick save/load state.
- Fixed sound playback.
- Fixed save/load state so it uses new small binary buffer instead the old one which takes large space.
- Added new apu (sound emulation) engine
- Added new sound mixer
- Added FME7 sound channels
- Fixed DMC sound channel
- Fixed Noise sound channel
- Nes engine optimized
- Fixed MMC3 (mapper # 4) IRQs.
- Added mapper # 12, 40, 42, 44, 67, 68, 72, 47, 50, 51, 57, 58, 60, 62, 74, 76, 77, 83, 86, 87, 88, 89, 105, 114, 115, 117, 118, 119, 133, 140, 5, 43, 45, 46,142, 180,182, 49, 200, 201, 202, 203, 204, 205, 213,185, 187, 188, 189, 226, 228, 229, 230, 231, 232, 233, 240, 241, 242, 243, 244, 245, 246, 248, 249 and 251
- Fixed mapper # 185.

Download: My X Nes 3
Source: Here