Those who subscribed for DSL from AT&T or Verizon were entitled to free Flickr Pro accounts from Yahoo, but that deal is coming to an end.
I just got this message from Flickr: "Due to changes in your AT&T Internet service, your Flickr Pro account will expire on 29th March, 2010. That's in 479 days! You can renew Flickr Pro for just $24.95 for a one-year account. And to thank you for staying with us, we'll give you another two months at no cost."
I don't have to pay until 2010 because I had already paid for one year of a Pro account, a payment that hadn't been used because of the AT&T deal. But most folks probably will see their free Pro accounts vanish sooner.
According to the Flickr help page on the subject, "AT&T and Verizon Internet Services have reworked their broadband packages and will no longer be offering Flickr Pro to subscribers after January 31, 2009."
If you don't pay, Pro accounts revert to regular accounts. Subscribers in that circumstance don't lose any photos, but they do lose the Flickr Pro perks, which include the ability to see more than the last 200 photos that have been uploaded, unlimited uploads, unlimited numbers of photo collections called sets, ad-free browsing, and the ability to view full-size images.