It's a substantial hassle to do serious benchmarking comparisons between the devices because the Player is firstly not an editable environment (you have to wrap everything you want to be timed inside some sort of Manipulate, and every change requires a cycle of save on the Mac, delete on the iPad, reload on the iPad), secondly Wolfram have made the decision (for whatever reason? or it's a bug? or it's an iOS power-saving thing?) that any calculation that takes longer than around 5 seconds goes into some sort of neverland where the UI doesn't tell you what's happened, but the calculation is never going to complete. Well the Player has been released and I've spent a few hours playing with it. I mentioned some weeks ago that Wolfram was going to ship a Mathematica Player for iPad, and that it would be an interesting performance comparison against x86 of a "serious" app.
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