vNes, the fastest and best NES emulator for mobiles. It is fastest - with nes instructions optimizing, it can be even run smoothly in J2ME(java in mobiles). It is best - it has perfect sound(for symbian,smartphone), perfect speed and most roms. It supports many different mobile models.

vNes S60 3rd Version (Nokia Series 60v3) 1.70 (Symbian Signed)
New features: (details)
- New screen size for portrait/landscape/rotate mode
- Improved drawing speed for "highest quality"
- 44K sound output for Nokia 6630,6680 (previous version 16K)
- Improved screen speed for Nokia 6680 that has 262K colors
- Add more than 20 mappers (especially support for N-in-1 rom

Here is the link:
http://www.ziddu.com/download/3797654/vNes.v1.7.Signed.Cracked.zip.html