Suzanne - Yes, the person who developed EyeEm I've heard is a former employee of Flickr.
With that said, I use Flickr iOS for iPad and think it is far better than the Instagram app. Especially the post processor / editor.
They guy running Flickr now, I think his name is Bernardo, has tons of experience with mobile and success with it too. ... and, yes, he is listening.
So, yes, it makes sense the mobile people left Flickr, but I also believe in due time Flickr will dominate the category over Instagram, Facebook, Twitter, etc.. Because Flickr combines all of these in their platform and is developed and formated for photography and photographers. Instagram is not.
In other words, if you want to promote yourself = post to Instagram. If you want to promote your photography, as I have done very well, = post to Flcikr.
The main issue we all have to accept is that everyone on Flcikr is considered a photographer and not just the Pro's.