I have been getting a handful of crash reports from Keyman users running on Mac OS X 10.7 and 10.7.5. Because this is a small % of the total market and we do not have access to a computer running 10.7, we do not intend to invest development effort to fix problems for which there is a reasonable work-around. We know that double-clicking KMP files (a new feature in Keyman 10 beta) does not work on Mac OS X 10.7 and 10.7.5. We think that it is possible to open the Configuration window and drag a KMP file onto it to install it. If there is a beta tester out there using 10.7 or 10.7.5 who can confirm that this is a viable workaround, we would appreciate that feedback.