[jetty-user] Getting started with Jetty, BlazeDS, Flex & CometD?

It's been awhile since I have used Flex/BlazeDS, I have a new project where
I need a very efficient & scalable comet like solution for a Flex
application with backend Java server.  So I'm thinking Servlet 3.0 (Jetty
Continuations is deprecated right?)  Since I understand BlazeDS doesn't
support Servlet 3.0 yet I assume that means I need jetty-blazeds?  Is this
a modified BlazeDS stack that supports Servlet 3.0?  One problem with this
is that it isn't fully mavenized...which I need.  It complains that
flex-messaging-core & flex-messaging-common aren't available, why publish a
maven artifact that has references to two artifacts on the local file
system?  What are these artifacts, who wrote the code?  (The guy managing
our Nexus server is going to wonder why org.mortbay.jetty created two
com.adobe.flex artifacts, etc.)

Also is CometD the right/best comet solution to go with the Jetty, BlazeDS,
Flex stack?

Am I going in the right direction here?  Any help is greatly appreciated.
Are there some getting started docs for Jetty, Servlet 3.0, high
performance comet solution?

Thanks,
-Dave