Great Job!!, but don't you think "Proteus" can do the same and more?
Yes Proteus can do a lot more... afther you learn to use it, this simulator wants to be simple and easy to use.
I find Proteus too complex, slow to use even when you learn the basics, dificult to find components in libraries, need to change tool for add components, wire then, move or do other thigs... i needed lot of time just to figure out what the hell i have to do to put a simple resistor in the circuit.
I think Proteus it's a very good app for professionals, specially if you can pay license, but not good for hobbist that just want to have a few generic components at hand, drag and drop in the circuit and hook then fast and easy, no lot of icons, lot of libraries, lot of screens, lot of time to learn the lots of features...
Proteus is a comercial aplication, this one will be free and open source, i opened the contributions campaign to have a release in a reasonable period of time, if i can't work in it full time for a few mounth it's dificult to have something working in Windows and Linux in short time.
If i just work in it in my sparse time, may be i need years instead of mounths.
The idea is also that contributors can participate in the development process, proposing and voting features, components or anything they would like to have in the simulator.
Next step will be integrate a code-editor/debugger/compiler so it will be possible: create sketches, compile, debug/simulate, and upload to real boards... but this will be in the future... i hope..