Sorry @JDW, I just saw your post. Thanks for the kind words as alwaysMy goodness! What's even more shocking than the incredible links and info presented by @eric in the opening post is that I didn't even notice this thread until today! Yikes!
I'm especially having fun with Raiders of the Lost Icon. Here's a screenshot showing an icon extract I made...
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And the Export options are fabulous!
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@OneGeekArmy is awesome!
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One thing I did find though is that the *.usdz file exported (of the Picaso Mac above) was only 1,499 bytes, and when I double-clicked it, Xcode launched, but Xcode shows it to be blank...
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I then went to an online USDZ file viewer, but it too showed the exported file as being blank.
There is also a *.txt file that was exported, but despite being 4,160 bytes, it too is blank.
The PNG & SVG exported just fine, however.
I've attached a ZIP archive of all the exported files.
Strange you're seeing empty contents for the txt and USDZ formats. I'll take a look in a bit (a couple of neat things need finishing up first).