I fail to see how Flickr is a 'sinking ship'. btw to all the photo app creators out there: no API - no go.
And API is one of the things that makes Flickr great, Snapjoy may have a sweet web interface but that's not enough. I'm guessing from the fact that they have a GitHub account that they'll release an API when the code has settled down a bit more internally, so that's probably just a short-term issue.
The pricing though... the pricing isn't even remotely comparable. You gotta give me a damn good reason to spend that much more money on a competing tool that basically just hosts my images and makes them easily viewable.