First of all, thanks for the plugin - it's a shame Nokia doesn't provide this on their own. Plugin seems to work well, except for the problem with calendar events with alarms - but hopefully that'll also get resolved some day. However, I'd like to request a minor change to the plugin. For some reason the ability to set/unset "don't synchronize events prior to" is disabled by this plugin (guess it's some sort of an Apple default - quite a few vendor plugins seem to have it disabled). To fix this, I've personally applied the attached diff and it seems to work just fine - I'd hope you'd apply this to the original version aswell.