After adding picture upload feature, now Twitter introduces “User Galleries” which aggregate the images you uploaded in your tweets into a personal photo gallery page.
Twitter user galleries includes images uploaded via Twitter, yFrog, TwitPic, Instagram, and other image sharing services supported in Twitter’s details pane. User galleries only display up to 100 most recent images in your Tweets.
The Twitter photo gallery can be found in the sidebar of user profile. Clicking the “view all” link to open the photo gallery page in “grid view”. You can change the view mode to “detail view” by clicking the buttons at the top right corner.
I like the dark background and no flash image gallery. Visitor can not only view the images but also add their comments by replying the tweet, though not shown under the image.
Twitter user galleries doesn’t update frequently. The last image in my user gallery is 5 days old.
Twitter user galleries read any supported image link in your tweets. The images shown on user galleries are not necessary uploaded by the user. If you quote friend’s tweet with image, it will included in your gallery too.
Learn more about Twitter User Galleries.