Actually information about Aion private development

Hello Aion developers / administrators, i from MU section, simple interesting some questions:

1. What open-source project is most perfect / stable / bugless?

2. As far as qualitative public ("free") development in Aion section, example: released update 4.5 - some team make emulator, this emulator have all features of 4.5 update or this product can be without like some new events / etc. part of update?

3. How i look C++ / C# emulators is dead, almost all what i get in this days - java, java, java, why?

4. Where developers get references for development new updates? Example: in MU section we have leaks from WebZen inc. with debug information, if u have decompille skills - u can restore 100% identical code, in other words - fully original code.

Sorry for bad english, with best regards, DarkSim.

1. Biggest part are using AL4.5 source from that svn http://al-reload.googlecode.com/svn/ as base for server.
3. Just because biggest part of available source in svn based on java, and it's more easy to find some idea looking at different team code instead of creating something from beginning in c++.
4. Info for create and fix - just from any available places that can be found.

all was only my mind and way of thinking.