I tried Processing 2.0 beta3 on my MacBook Air Late 2010(OSX10.8.2) and failed to launch Processing IDE.
After I click Processing icon or run from Spotlight, the icon appears and hops on the Dock, shows the splash screen then disappears. nothing happens after that.
The old Processing 1.5.1 has no problem but the problem occurs on 2.0 alpha8, 2.0 beta1 and 2.0 beta3.
The strange thing is I have no problem with 2.0 beta3 on my MacBook Pro mid 2010 with Mountain Lion.
I checked Console.app what is going on after launch and found the message below,
Dock[294]: no information back from LS about running process
I googled around with this message and tried "unzip" things or removing quarantine attributes but still can't launch the application.
The same problem happens even after I copied Processing.app from my MBP so I guess this is not the problem of Processing but the problem of my MBA.