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I've got it installed on my MacBook Pro perfectly safely using the (free) VirtualBuddy VM. Have to say, after quite a bit of playing around, I really dislike much of the new UI. The overly rounded corners are horrible on a Mac. The Finder, in its current form, is especially gross. Side-by-side with an existing Finder window it's a huge downgrade. Hopefully there will be lots of changes in the right direction between now and release.

I don’t think there is much hope for good change. What made Apple worth its premium starting with the first Macintosh was the idea that design and function are inseparable. Unfortunately, after Ive left, Apple seems to have adopted the pedestrian industry idea that engineering and aesthetics are independent. Deign is now look and feel tacked on to make function look pretty. Icons and buttons change style every few versions with no functional gain — just visual refreshes that break muscle memory. Simple tasks get hidden behind multiple clicks and cryptic ellipses. Gawd help you find the thing you need to change in the Control Panels, I mean the System Preferences, doh, I mean the System Settings.
 
Way to go @MacRumors.

Let’s encourage more non-developers to access this non-public beta, eliciting more negative feedback.
Is this article meant simple to engage more web traffic, or further infuriate those who understand the beta process, over those who simply want immediate gratification.
 
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