Heres a new version of the Spectrum emulator, heres the release details:

Unreal Speccy Portable v0.0.78.3 is released. unreal speccy portable is a Portable ZX-Spectrum emulator. unreal speccy portable supports Z80 128K (Pentagon) AY/YM, Beeper, Beta Disk, Tape, Kempston Joystick/Mouse, Snapshots. Created to be ported to many platforms such as Windows/Linux/Symbian/WinMobile/Dingoo/...

Unreal Speccy Portable v0.0.78.3 Changelog:
GigaScreen video mode support option