Hi Charles,
I came randomly on your website and Whaouuu ! a lot of very good informations...
I'm just a DIYer, i know nothing about electronics, just a little bit of programming, and i 've learn a lot with your blog.
I'm looking forward for your UPLNode project and the WifiInfo -> i want to buy one !
Have a look on this : http://konashi.ux-xu.com/en/documents/#introduction-architecture
Worth a look i think.
Keep going and thanks for sharing.
Cheers,
Stephane