The rest of the Flickr mobile revamp features an updated and more user-friendly menu system with more focus on social features. Your activity stream is beefed up and accessible right from the home screen. Flickr mobile will also now let you comment on and favorite photos from your phone -- an option missing from the past design. It makes contact management a bit more intuitive, too, letting you add contacts and easily view friends' recently uploaded photos. Privacy settings are now accessible from the mobile site as well.

Flickr's modernized interface aims to make submitting pictures simpler with a new built-in way to add Flickr directly into your address book. Once you do that, you can just drop a mobile photo into an e-mail, tap in the "Flickr" address, and hit send. And if you've got nothing interesting to show, the retooled Flickr mobile brings the day's top public photos to your fingertips so you can find something to see.

Mobile Photo Growth

Flickr's motivation for expanding its mobile space makes sense. The Yahoo-owned company says it's seen a 50 percent increase in usage over the past year, and it's not alone. Recent numbers from data measurement firm indicate mobile photo messaging jumped 60 percent in the U.S. this past year. In a somewhat surprising twist, the group with the highest percentage of growth wasn't teenagers, either -- it was adults aged 45-54.

Flickr seems to have some catching up to do, too, judging by its traffic. A ComScore study ranked Flickr at 18.3 million U.S. visitors per month in July, behind Facebook Photos at 25.4 million and Photobucket at 23.5 million. Google's Picasa came in last with 8.3 million monthly U.S. visitors.