The 0MQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialized messaging middleware products. 0MQ sockets provide an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols, and more.
SMS Manager is a replacement for the default messaging application for the Android operating system. It features seperation between the inbox and outbox, a detailed folder view in the inbox (unread, read folders), a detailed folder view in the outbox (sent, draft, undelivered folders), and a spam filter for unwanted senders.
Xenograte Community Toolkit is based on Xenograte, a platform which enables users to manage and orchestrate worker processes, and easily design the flow of data shared among them. Xenograte works either on one server or across multiple servers/clouds. The Toolkit provides a CLI and other resources for building, testing, and debugging worker processes, in Ruby, on a single machine. You can then easily weave these worker processes together into powerful integrations or automations.
OpenAMQ is a fast, stable, free implementation of the AMQP (www.amqp.org) messaging protocol. It gives applications high-performance messaging (delivery of opaque data) across loosely connected networks. It is capable of handling up to 600k messages per second depending on the hardware, with a latency around 300 microseconds. It is multithreaded and supports C/C++ and Java on Linux, AIX, Solaris, OS/X, Windows, and OpenVMS.
Collage is a cross-platform C++ library for building heterogenous, distributed applications. Among other things, it is the cluster backend for the Equalizer parallel rendering framework. It provides an abstraction of different network connections, peer-to-peer messaging, node discovery, synchronization, and high-performance, object-oriented, versioned data distribution. It is designed for low-overhead multi-threaded execution, which allows applications to easily exploit multi-core architectures.
Apache Qpid is a messaging broker that implements the latest AMQP specification, providing transaction management, queuing, distribution, security, management, clustering, federation, heterogeneous multi-platform support, and much more. It is extremely fast and aims to be 100% AMQP Compliant.