Ah, I'm sorry to hear that. Hopefully, they make their library code more readily available before closing their doors.
Source: http://blog.picloud.com/2013/11/17/picloud-has-joined-dropbo...
They are supporting much of the PiCloud functionality, but not function publishing, which I used quite a lot. (That was a way you could "publish" a function to PiCloud, and then call it from a RESTful interface. It was a nice way to decouple my computational code from my website, which has very different dependencies.)
I fear it is more oriented toward the use case of doing long running scientific jobs, rather than short Celery-like jobs. I hope for the best.