gistfile1.js

var program   = require('commander');

var Wind = require('wind'),
    Binding = Wind.Async.Binding;

//Wind.logger.level = Wind.Logging.Level.WARN;

program.chooseAsync = Binding.fromCallback(program.choose);

/*program.chooseAsync = Binding.fromCallback(function(list, fn) {
  program.choose(list, fn);
});*/

eval(Wind.compile('async', function () {
  var list = ['javascript', '.net', 'php', 'ruby', 'python'];
  var choise = $await(program.chooseAsync(list));
  console.log('you just chose: %s', choise);
}))().start();