First name I thought about was AppleLin - in analogue of AppleWin, its predessor. But later I changed my mind and decided to name it LinApple - LINux emulator of APPLE][, Apple][+, Apple//e, and Enhanced Apple//e computer. It works out of the box and emulates almost everything AppleWin can, but several things.
First of all, it needs a DEBUGGER. I just owe at 9300 lines of code in Debug.cpp of AppleWin written by Michael Pohoreski. And this is just main debugger source file, there are also Debugger_Assembler.cpp, Debugger_Console.cpp and others. I think may be we need some easier implementaion of debugger, which eariler AppleWin had, what do you think?
Ok, next great thing missing in LinApple is PHASOR support. Although there are few Apple][ programs and games using it, it'd be welcome in our emulator, in my humble opinion.