B-em v2.0 is released. B-em v2.0 is a Freeware BBC Micro Emulator for DOS, Windows and Mac OS X

B-em v2.0 Changelog:
* Most of the emulator re-written
* Cycle-accurate video emulation
* Higher quality mode 7
* Added 80186 (Master 512) and 65816 second processors
* BeebSID emulation (using resid-fp)
* FDI support is back
* Improved sound overall
* Much more stable
* Debugger
* Redefineable keyboard
* Now licensed under the GPL

Download: B-em v2.0
Source:Here