Topic: [b]Introducing the Reactive Framework[/b] [divider] Rx is a library for composing asynchronous and event-based programs using observable collections. Rx is a superset of the standard LINQ sequence operators that exposes asynchronous and event-based computations as push-based, observable collections via the new .NET 4.0 interfaces IObservable and IObserver. These are the mathematical dual of the familiar IEnumerable and IEnumerator interfaces for pull-based, enumerable collections in the .NET framework. The IEnumerable and IEnumerator interfaces allow developers to create reusable abstractions to consume and transform values from a wide range of concrete enumerable collections such as arrays, lists, database tables, and XML documents. Similarly, Rx allows programmers to glue together complex event processing and asynchronous computations using LINQ queries over observable collections such as .NET events and APM-based computations, PFx concurrent Task, the Windows 7 Sensor and Location APIs, SQL StreamInsight temporal event streams , F# first-class events, and async workflows. [divider] Please take note that the location for this meeting returns BACK to the Microsoft offices as usual. Check the Meetup site for details!