Plixi, Formerly TweetPhoto, Updated To Offer Location-Based Photo Sharing On The iPhone
The new features include:
Publish pictures to Twitter and Facebook
Add pictures to places or events near-by
View pictures and people nearby
Create user-defined events and places
Upload pictures without having to check in
Tag friends in pictures
See what friends are doing
Get notifications around friends and pictures
View public and celebrity photo streams
Comment, Vote and Favorite pictures