Looks pretty cool. Few questions.

1) Do you have to give your calendar login to a 3rd party? 2) What happens I add something to my calendar on my computer, is there some alert sent to someone that they need to add a lego to the board? 3) What I schedule something on the calendar online, but the lego doesn't get added to the board. When someone takes a picture and syncs it, what will happen to my appointment? Will it think it's gone and erase it? Notify of the descrepency, etc....

I'm envisioning in my head some arduino powered lego calendar that automatically puts the blocks in place as appointments are added/moved/deleted from the cloud.