Love it. A much better idea than getting my wife's parents on Facebook just to see pics.
This would also be cool with Dropbox. I know people have shared albums with new pics added every-so-often.
And a printed option (someday) would be nice too. Something like the recipient can one-click to get a printed version sent to their house (and I pay).
But very cool anyway.
And photo printing for your recipients will be added before the oh-so-important photo printing holidays (Christmas and Hanukah).
Thanks for the ideas!