MESS v0.135u2 SVN r6572 is released.MESS is a free emulator which emulates a large variety of different systems.

MESS SVN Changelog:
r6570
Adding docs [Barry Nelson]
r6571
- NorthStar Horizon (Double Density and Single Density models)
- Vector Graphic Vector 1+ (clone of Horizon,but different I/O)
- Removed my credits on skeletons
r6572
[CONKORT] Implemented Z80 wait logic, and I/O mirroring.

Download: MESS v0.135u2 SVN r6572
Source:Here