I pretty much have the same information.
Note that OneView and SIM is a not a 1:1 comparison. OneView is much more and only a subset of SIM features right now. OneView is slated to be the single point of management to replace functions of VCEM, SIM. It's not a perfect conversion. You can set up OneView yourself with the downloadable appliance.
So, what's not in OneView that is in SIM today? Warranty entitlement lookups, IRS/IRSA, support for pre-G7 machines and some of the plugins from Insight Control (power management, performance management). There are also no current plans for multi-vendor support. Now, given that HP Cloud tools do support multi-vendor, it is my assumption that OneView as well, as a piece of the overall automation suite, it's just not on the current roadmap.
In my opinion, you'll keep SIM for your legacy equipment and multi-vendor stuff, but from Gen7+ onward, especially if you have enclosures or new deployments, you'll want to go OneView, but if you use IRS, i'd wait. Basically, OneView needs to catch up a bit before people can replace SIM with it. I am all for it, however - SIM is getting "long in the tooth" and was in dire need of a technology update (lose java, UI update, combine plugins into one too for better management). Plus, managing VCs and storage within OneView is great. I am looking forward to learning more at Discover..