A vacuum of users who suddenly need a new service to shovel their money at will be quickly filled by the market.
I -love- the game Master of Orion II. Every few months I dust it off and spend an entire weekend on it. Because I control the software, I can continue to enjoy it 13 years after the developer folded.
I built a Facebook game a few years back. The company that owns it decided to shut it down. I get messages -every day- from people who are dying to play again. But there's nothing they can do, they don't control the software.
Did you retain any rights, such that you could white-label and de-facebook-ize it, and stick it up on a webpage?
"Oh, yeah. Just get used to it. Notepad++ is so much more modern."
Try a modern editor. Like vim, emacs, or textmate/e-texteditor, and look into what people have built for them. Then tell me you think N++ is more capable.
edit: bah! misreading sucks. delete that last line. Now I need a time machine :\
As a Vim user I feel compelled to mix a shameless plug for my editor of choice in a conversation every time the topic shows it's head. Anyway, I think you misread my comment. I love Vim and I don't even run Windows (to run Notepad++).
Of course, sometimes you reach a grey area where some parts are exportable, but not others. Take Bloglines, the RSS reader, which allowed me to export my subscriptions as XML/OPML, but didn't save my starred entries. Of course, you could argue that this wasn't their fault, seeing as there probably wasn't any standard to support the export. Nevertheless, it turned out to be something that would bite me in the ass, when Bloglines (initially) went belly up.
I think we've reach a point long ago where we found out that there's a tangible chance of losing our data stored in the cloud. This is not a new "cause for alarm" or anything of the sort. We're basically at "fool me thrice" at this point.