- Implement setenv / unsetenv

- Implement other stuff missing in node.cc/process
  Like setuid, setgid, kill etc.

- Implement missing `net` methods 

- Child processes

- Stdio (make TTY's / repl / readline work)
  Also verify writeError and isStdoutBlocking correctness

- Make `make test` work, think about `make install`

- Find a solution for fs.symlink / fs.lstat / fs.chown
  Windows has different symlink types: file symlinks (vista+), directory symlinks (vista+), junction points (xp+) 

- Handle _open_osfhandle failures
  E.g. currently we're using the construct _open_osfhandle(socket/open/accept(...)).
  Now socket() can fail by itself and _open_osfhandle can fail by itself too.
  If socket() fails it returns -1 so _open_osfhandle fails as well, but and we'll always return/throw EBADF.
  If _open_osfhandle fails but socket doesn't, a stray handle is left open. It should be fixed.

- Check error number mappings.
  Winsock errnos are different.

- Extensions
  Should be DLLs on windows.

- Link pthreads-w32 statically by default

- Make (open?)SSL work

- Support using shared libs (libeio, v8, c-ares)
  Need to link with with a stub library. Libraries should use `dllexport`, headers must have `dllimport`.

- V8: push MING32 build fixes upstream

- Work with the V8 team to get the stack corruption bug fixed

- Work around missing pread/pwrite more elegantly
  Currently it's exported from libeio, while it wasn't intended to be exported.
  The libeio workaround implementation sucks, it uses a global mutex.

- Work around missing inet_pton/inet_ntop more elegantly
  Currently it's exported from from c-ares, while it wasn't intended to be exported.
  It prevents linking c-ares dynamically. 

- See what libev/libeio changes can be pushed upstream

- ... much more probably