Ian Jarman evidently announced this at the RPG & DB 2 Summit last week, and details are still sketchy, but it appears that this could unleash development of several new types of IBM i applications.
I happened to come across the announcement at
http://www.itjungle.com, which referred to a video produced by Scott Klement and published at
http://www.youtube.com/watch?v=z_SRCYgr9cA&feature=related (beginning late in the video at segment 7:40) - Jon Paris and Susan Gantner also referenced Open I/O in their blog at
http://ibmsystemsmag.blogs.com/idevelop/2009/10/memories.html ...
Did attendees receive a copy of Ian's slides? If so, I wonder if anyone would be good enough to post a hyperlink to the slide which introduced Open I/O? It was barely visible in Scott's video.
I gather that RPG programmers will still be able to reference display files and record formats via "F" specs and Read/Write opcodes, but have custom I/O handlers intercept the I/O just prior to the point where the 5250 data stream would be generated or parsed ...
The ultimate goal would be to enable native applications to more easily interface with more types of clients - browsers & so forth ...
-Nathan.
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