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Not at all, unless you are thinking several decades. Why dispose of perfectly good applications that are running just fine?
How is IBM going to sell new machines if you just run existing apps and leave them alone? How are ISV's going to market new applications to the iSeries? Why would schools want to teach iSeries-related skills?
If all new development is done on Windows there's no need for any of these organizations to keep supporting the iSeries. Other than repair services, that is -- and that market will decline over time as people phase out the iSeries.
If the system is to have a future, people have to have a good reason to use the iSeries rather than Windows. Not just keep running it because "the existing apps work fine."
If we want to be iSeries advocates and try to keep our system from dying a slow death, then we need to talk about the advantages of the iSeries. Job logs are a good example of this. The strengths of the program message system on the iSeries is another. The value of the SLIC layer for both portability and security. The list goes on.
Just speaking for myself here -- I value those things. I think the iSeries is a great platform. I don't want to run my programs on Windows where I have to worry about weird unexplainable problems! I like the fact that the system logs what happens in my job and allows me to go back and look at it. I like that the system sends me an escape message when an error occurs, instead of returning an error code that I can forget to look for. I like that it's very difficult to make a virus work on the iSeries, or have a buffer overrun that can do any significant damage.
I sure don't want to give up those advantages by running my programs on Windows.
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