Reactive Framework available from DevLabs
Downloads of the Reactive Framework (RX) can now be found at MS DevLabs. Versions for 3.5 SP1, 4.0 Beta, and Silverlight 3 are available. Interestingly, the API size appears to be substantially larger than the preview which was leaked as part of the Silverlight 3 Toolkit. That DLL was all of 84KB, the current release is weighs in at 283KB.
In regards to CEP, the comparisons between StreamInsight and RX are interesting
| RX | | StreamInsight |
| Low – it’s managed code all the way down | Leaking abstraction | High; Linq2SI is like Linq2SQL, except the underling SI implementation isn’t well understood |
| Limited by CLR and GC | Performance | High b/c of native code |
| None out of box | Windowing support | Explicit |
| Easy | Adaptor support | Not hard, but not trivial |