Just got married and trying to merge our calendars along with everything else. Here's the device and account rundown: Me: Macbook + iCal + iCloud (primary email) + iPhone Her: PC + Yahoo web mail (primary email) + Blackberry + iPad We've tried sending invites to one another's respective calendars on iCloud and Yahoo but that's caused a lot of issues. See here. Open to any free service (icloud, gmail, etc) that'll just work across all our devices and happy with it being one shared calendar. Anyone have any recommendations on how they've managed calendars?