Speccy is a Sinclair ZX Spectrum home computer emulator. It will run software written for Spectrum 16k, 48k, 128k, +2, +2A, +3, Timex Sinclair, Pentagon, and Skorpion home computers.

Changes:

* System ROM files are no longer required.
* Soundtrack recording to MIDI.
* Accelerometer support.
* Bigger virtual keyboard and corner buttons.
* Sony Xperia Play buttons are fully supported now.
* Fixed TV scanlines effect.
* Fixed accidental crashes when exiting emulation.
* Synced Speccy to 50Hz, due to Spectrum’s primarily PAL hardware.
* Mapped unused physical keyboard keys to the FIRE button.
* Screenshots-on-exit now optional.

https://market.android.com/details?id=com.fms.speccy