The term is also being misused to break a promise.
"We will finish this, inshallah" or "I'll help you inshallah" and then nothing happens. A friend of mine gave up all trade affairs in a "muslim" country for reasons of "Inshallah", because the term is widely used to fool honest muslim-trading partners.
"I will send you this documentation in the next few couple of days, inshallah!"
So if nothing happens, it is Allahs will that you have been fooled.