That would work, but if you want to share with the same people again, you have to retype their addresses, at least with a copy and paste. With a good mobile pla

That would work, but if you want to share with the same people again, you have to retype their addresses, at least with a copy and paste. With a good mobile platform it streamlines the process and can make sharing a much more spontaneous action, and with the concept of a personalized "circle", you also get a more intimate feel than an email thread :)