Symbian OS v3 port of UnrealSpeccy by SMT an ZX Spectrum emulator. It supports Z80 128K (Pentagon) AY/YM, Beeper, Beta Disk, Tape, Kempston Joystick/Mouse, Snapshots. Supported formats: sna, z80, tap, tzx, csw, trd, scl, fdi, zip.

http://code.google.com/p/unrealspeccyp/