The current picture viewer allows people to share the pictures with other using :
- bluetooth;
- e-mail;
- web-services (at the moment only Flickr and “Ovi by Nokia”).
It would be consistent to allow sharing pictures using IM accounts. The telepathy framework allows to send files to contact independantly of the used backend, so it shouldn't be overly complicated.
A bug has been opened (https://bugs.maemo.org/show_bug.cgi?id=7157) but I was asked to port it here.