The lastest update for iKeepActive fixes the issue with the Calendar app not being able to run iKeepActive when your scheduled activities are due on their calendar date, a limitation introduced in Mountain Lion. This version also supports previous versions of OSX, Lion and Snow Leopard. Some new features were also added.
This update has been waiting for approval from Apple’s app review team for nearly four weeks now. Until then, iKeepActive remains voluntarily withdrawn from the Mac App Store, unfortunately even for potential customers on earlier versions of OSX who would not be affected by the issue. Apologies go out to all iKeepActive users who have upgraded to Mountain Lion, who have been suffering from this issue since July.