Amazon SimpleDB [via Simon Willison]. Erlang. Schemaless.
Amazon seems to really get the Getting Started should be free aspect of the web, and is clearly targetting the “She has the idea on Wednesday and gets the script working next Monday, and one quarter later, either gives up on the idea or is incredibly rich. Both are good outcomes” developer market.
Meanwhie, Mark Nottingham of Yahoo! is proposing standards for caches which prefer to serve slightly stale content fast in lieu of providing late or broken results.
Update: Keith Gaughan: That ain’t REST. They screwed up the “REST” interface for it exactly the same way as they screwed up the one for SQS and FPS.