And lo, barely had I hit submit, when Instagram (owned by Facebook) changed its T&Cs to grant Instagram licensing rights to sell all photographs taken by the application. (From the Register: Don't use Instagram, it'll sell YOUR photos)
The reactionary vitriol from its user base demanded that Instagram did an about turn within 24 hours:
Instagram users own their content and Instagram does not claim any ownership rights over your photos. Nothing about this has changed. We respect that there are creative artists and hobbyists alike that pour their heart into creating beautiful photos, and we respect that your photos are your photos. Period.
Blog post by Kevin Systrom co-founder, Instagram
Sigh - what a horrible embarrassment. Will Facebook ever learn???