Update:
Christian Lindholms Weblog tells the story.

Moblogging from the Nokia 6600 with Atom API

Pertti Korhonen, Nokia’s new CTO introduced PhotoBlog for Series 60 in his keynote at ETech in San Diego. This application proof-of-concept is supporting the Atom API enabling users to post to leading blog platforms. The application was developed by Futurice, who is developing a Photblog platform.

Via Joi

See also:
Christian Lindholm, Nokia at Etech
Pertti Korhonen, CTO Nokia at Etech
Enabling 'Life Goes Mobile' by anti-mega
Nokia 6600