Sun on IMS...
I thought that this article "IMS Q&A with Greg Papadapolous, CTO and Executive VP for Sun" had some interesting slants on IMS, at least showing how Sun sees it anyway.
A couple of interesting points:
One about the billing, that IMS allows a greater degree of understanding how the wireless link is being used, which means more options for billing.
The other is about JXTA, the Java peer-to-peer technology promoted by Sun. SIP is inherently P2P with all the intelligence at the edge of the network. Theoretically, there's an obvious and possibly attractive link to something like JXTA, but the devil will be in the details (like with a lot of IMS stuff).
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