If you are thinking about trying the latest development build of OS X 10.5 Leopard (9A283) be warned that many popular applications do not fully support it yet.
I had problems with Skype 2.0.0.3 (no incoming/outgoing voice/video calls), SnapNDrag 2.0.4 (crashing when trying to save the screenshot), DevonThink 1.2.1 (couldn’t mount the DMG file), 1Passwd 1.5.3352 (Safari extension does not work).
Other than that, the new version looked great — sorry, I can’t tell you much more than that because I signed an NDA.
