I'm not sure what SOA initiatives you've been involved with but I've not seen a bottom-up one yet.
Surely I see developers on the ground using Web services quite often but they rarely do it as part of a SOA effort. More importantly, they are using Web services for the needs of a specific, one-off application, and not for use by others. Furthermore, line of business people are not the drivers of SOA in almost any effort that I've seen or worked with. Both of these are the opposite case in the Web 2.0 world, where open APIs and feeds are seen as business imperatives for uptake and adoption. This and much more is conveyed in the chart and I stand by it.
Finally, to your point about a new acronym, I'd say SOA is too broad a term on its own for this conversation and pulls in considerable "legacy baggage" we should be de-emphasizing -- though not eliminating -- in favor of other things. In my humble opinion, that's why we need a new acronym, so we know we're not talking about the old ideas, but these new ones.
Best,
Dion Hinchcliffe
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