Basically handling only the urgent customer requests. We have quite good support system which fortunately does not require much human attention. Also an auto-reply letting people know I only deal with urgent requests.
Actually my problem was that I found myself working on many issues that were scheduled after vacation. Body was on vacation, mind wasn't.
Having a co-founder is better than going alone, but only if the person shares same values, passion, attitude to work etc. Instead of trying find this person (which is more difficult and takes more time outside the Valley) it's better start working on the idea by yourself while still keeping your eyes open for co-founder/1st employee.
Yes, but in the last years the shipping of many Nokia smartphones has been delayed by months. So it's questionable whether Windows Phones will be available by the end of this year.
Actually my problem was that I found myself working on many issues that were scheduled after vacation. Body was on vacation, mind wasn't.