ZXDS is an emulator of Sinclair ZX Spectrum for Nintendo DS, written by Patrik Rak. It is steadily reaching a mature stage of development, and it already has some noteworthy features, like accurate emulation of Spectrum 48k, 128k and Pentagon models (including sound), or support for TAP/TZX/PZX tape files, TRD/SCL disk files and RZX playback files.


+ Memory viewer and disassembler.
+ Tape sound is now audible in normal speed load mode (conveniently forced with R+A).
* The system log can be saved to a file now, helpful when troubleshooting.
* Cleaned up the virtual directory code, greatly reducing the amount of required IO accesses.
* Changed the confusing bouncing logic of previous displays’ history to simple LRU.
* Fixed the annoying sound clicks when sound is temporarily paused (e.g., scrolling in requesters).
* Minor bugfixes in download code (HTTP continuation lines, last line EOL in listings).
! Dedicated to the memory of Jonathan Smith. Rest in Peace, Joffa.

Thanks to http://www.nintendomax.com/viewtopic.php?t=12226&f=19 and http://www.emucr.com/2010/08/zxds-v091-beta-1.html for the news.