The Mac App Store launched in early January, pulling an impressive one million app downloads in the first 24 hours of operation. The initial lineup of 1000 apps has expanded considerably over the past few weeks. For gamers and emulation enthusiasts, the impact of the store is still unclear. It is certainly good for the exposure of games on OS X, but could potentially discourage people from looking elsewhere for software that doesn't meet Apple's stringent requirements. The only emulator that seems to have made it past Apple so far is MacWise (a terminal emulator).
Apple's stringent approval policies have come under fire recently, following the listing of an unauthorised clone of Wolfire's Lugaru HD game which severely undercut the price of the original. The developers of this unauthorised version claim to be within the rights of the GPL2 licence under which the source was released back in May, while Wolfire insists that the assets -- graphics, sound, other artwork -- are protected and may not be redistributed. At the time of writing both versions remain on the Mac App Store. Also see the Kotaku post for a more detailed run-down of the issue.
A new(-ish) emulator called OpenEmulator -- not to be confused with Open Emu -- aims to be "an accurate, portable emulator of legacy computer systems." Development efforts are currently focused on implementing a Mac OS X interface and emulating the Apple I and MOS KIM-1 computers, although there is also functional Apple II support. The emulator notably uses a software components framework, which allows the simple addition of expansion devices and peripherals (including virtual monitors). See the official website for more information.
MS-DOS emulator Boxer approaches nearer to its official 1.0 release, reaching 1.0rc1 a few days ago. The 1.0 release promises to be a complete overhaul, with more intuitive game installs, a new interface, support for cover art, better stability and performance, and "much, much more." See the official website for full details and a download link.
More emulator updates after the break.