Intel Mac here. Updates ran fine, then it crashed with the following log:

00:33:05    [info] logging started at 2011/12/27 00:33:05 -0500
00:33:05    [info] public alpha version - build #15 (2010/12/30)
00:33:05    [info] registered data path '/Applications/Resistance Force.app/Contents/Resources/data'
00:33:05    [info] registered '/Applications/Resistance Force.app/Contents/Resources/data/resforce0003.zip'
00:33:05    [info] registered '/Applications/Resistance Force.app/Contents/Resources/data/resforce0002.zip'
00:33:05    [info] registered '/Applications/Resistance Force.app/Contents/Resources/data/resforce0001.zip'
00:33:05    [info] registered '/Applications/Resistance Force.app/Contents/Resources/data/resforce0000.zip'
00:33:05   [error] unhandled exception occurred in thread "main"
             [...] java.lang.NullPointerException
             [...]    at engine.dT.<init>(SourceFile:42)
             [...]    at engine.dT.<init>(SourceFile:29)
             [...]    at engine.cn.init(SourceFile:21)
             [...]    at engine.cI.<init>(SourceFile:35)
             [...]    at engine.Launch.main(SourceFile:53)