Interesting to see that RIM has announced a new set of APIs for its Java developer environment. While there's a bunch of stuff in there which is obviously useful like the multimedia side, there's something conspicuously absent - support for SIP, via the JSR-180 Java API.
Assuming it's not lurking somewhere else in the depths of the release's specifications, this seems to put RIM at a serious disadvantage for developers looking to innovate communications applications within the IP domain, such as hooking up to enterprises' IP-PBXs or assorted Internet-based and enterprise applications.
I don't think I'll be alone in suggesting that SIP's omission will have been heavily influenced by the more paranoid and backward-looking of RIM's operator partners.
It's interesting to contrast this with the hugely pro-SIP attitude of Nokia's E-series and N-series groups, as well as Windows Mobile manufacturers. As far as I can see, this should limit RIMs attractiveness to the growing swarm of enterprise FMC systems providers, and their operator partners.
Looks like a missed chance to me.