amfast is a new remoting library  that looks to be as sweet as pyamf (where sweet == fast and useful).  I am checking out amfast now but the speed boost alone might be worth it.  For instance, working with real-time games, when you need static content you need to grab that quickly sometimes via a content service.  The faster that link the better. It also has Twisted integration which is great for networking and SQLAlchemy integration which is in my opinion the best ORM for python (pyamf has twisted, django, pylons, sqlalchemy as well)

amfast is well documented and has some great examples.  If you have the Python addiction, check it.

Description

• AmFast is a Flash remoting framework for Python.
• AmFast can use AMF to communicate between Python and Flash, Flex, and any other system that supports AMF.
• AMF is a binary object serialization protocol used by Actionscript based applications.

Server Features

• Support for NetConnection and RemoteObject RPC.
• Support for Producer/Consumer ‘push’ messaging with HTTP polling, HTTP long-polling, and real-time HTTP streaming channels.
• Support for authentication with NetConnection and RemoteObject.
• Flexible Target mapping system to map message destinations to invokable Target objects.
• Support for ChannelSets with multiple Channels to expose resources in different ways.
• Built in Channels for CherryPy, Twisted Web, and plain WSGI.
• Support for configurable Endpoints. Use AmFast’s built-in AMF encoder/decoder C-extension, or use an external AMF encoder/decoder, such as PyAmf for a pure-Python implementation.

AMF Encoder/Decoder Features

• AMF0/AMF3 encoder/decoder written in C as a Python extension for speed.
• More than 10x faster than the PyAmf encoder/decoder (even when using PyAmf’s optional C-extension).
• Map custom classes with ClassDef objects for complete control over serialization/de-serialization.
• Full support for IExternalizable objects.
• Data persistence with SqlAlchemy including remotely-loadable lazy-loaded attributes.
• Actionscript code generation from ClassDef objects.