HadoopDB is a hybrid of parallel database and MapReduce technologies. It approaches parallel databases in performance and efficiency, yet still yields the scalability, fault tolerance, and flexibility of MapReduce systems.
The National Institute of Standards and Technology (NIST) has produced a working draft that defines various aspects of cloud computing, which may finally put a lid on the dubious claims put out by many vendors.
Asterisk, a somewhat resource consuming application is considered not fitting for Amazon EC2 structures. This talk will discuss the various issues related to creating dynamically extending platforms, using Asterisk, Amazon EC2, Amazon S3 and some web mesh-ups.
One of the barriers to enterprise adoption of SaaS and cloud services in general isn't security or unreliability; it's simply a cultural mismatch in the language that people use.