Operator: Start

[benjchristensen]

http://msdn.microsoft.com/en-us/library/hh229265(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh211971(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh229036(v=vs.103).aspx
http://msdn.microsoft.com/en-us/library/hh211721(v=vs.103).aspx

[samuelgruetter]

It would be nice to have the start operator not only for Action0, but also for Func0. With this, we could use the Java Observable to simulate Futures:

Observable<Integer> future = Observable.start(new Func0<Integer>() {
    public Integer call() {
        return someExpensiveCalculation();
    }
}, Schedulers.threadPoolForComputation());

[benjchristensen]

Implemented and then moved to async-util contrib module: https://github.com/Netflix/RxJava/blob/master/rxjava-contrib/rxjava-async-util/