Just installed 0.135 last night. Got my fresh set of ROMs installed. The games I've tried all work well. One issue I'm running into though is that MAME crashes with a big crash report every time I quit. I don't even have to do anything - start MAME, quit, and within ten seconds or so, a big crash report comes up on the screen. Says:

Process: MAME OS X [17001]
Path: /Applications/MAME/MAME OS X.app/Contents/MacOS/MAME OS X
Identifier: net.mame.mameosx
Version: 0.135 (135.00.00)
Code Type: X86 (Native)
Parent Process: launchd [107]

Date/Time: 2009-12-25 10:56:38.728 -0600
OS Version: Mac OS X 10.6.2 (10C2234)
Report Version: 6

Interval Since Last Report: 366272 sec
Crashes Since Last Report: 12
Per-App Interval Since Last Report: 3566 sec
Per-App Crashes Since Last Report: 8
Anonymous UUID: 9761BA9C-A40D-4DED-9A8B-8FB731699CDD

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000005f7a000
Crashed Thread: 0 Dispatch queue: com.apple.main-thread