OK this counts as a first. Visit the photography tab of the latest version of iTunes to get the new photo sharing app from our client Airme.
Right now AirMe users can post pictures from their iPhone directly to Flickr. AirMe adds location information to the pictures (the new iPhone is GPS enabled) and the AirMe user can include all kinds of extra custom tags like weather. AirMe will be adding scads more social networks very soon.
We like it because you can literally shoot and post without any clumsy emailing or additional needless faffing around. As Craig says, its easy, easy, easy.
You can get AirMe in the Apps section of iTunes.