After completing all the OAs and the 30 minute interview, weirdly enough, Amazon sent an email today saying,

"
Thank you for taking the time to interview with Amazon. We enjoyed getting to know you and feel that you would be a good fit. However, at this time, we are unable to extend an offer because we do not have available positions.
"

I'm not quite sure if this is pivotal, but it seems that Amazon is overextended in its interview process. Anyone else ever get this?