Hi,
I've browsed this group over the last year and have been amazed at the breadth of knowledge shared around the home automation space. I've been involved with remote monitoring for about 5 years and have seen a lot of transaction on the wireless front with GSM/CDMA modems. There are quite a few manufacturers currently selling application specific devices with all sorts of different sensors as well as wireless communication protocols. As a developer, this has been very frustrating from an adoption standpoint. If anyone in this group is interested in remote telemetry, telematics, and control then please feel free to check out
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It's an initiative to bridge all different aspects of the M2M (machine to machine) value chain. There are some very interesting wireless applications cropping up and I'm working to build a community of knowledgeable participants that can discuss the best practices and gotchas of M2M. I've learned a tremendous amount from this list and hope to see you over at M2MForums.
All the best, Dennis