I love it, we do this with facebook but it is clumsy and facebook is constantly trying to make the stuff public.

I would love an ipad app so stuff I shared would show up on a dashboard for grandma and grandpa who arent competent at using the internet (i.e. picture frame which shows the newest stuff from the kids)

I also saved a bunch of events like first food etc that I lost during a hard drive crash, love the idea of emailing to mark the events.