good blog post....
Excerpt..
Is there a good answer to the question? There is, but unfortunately, it will only be clear in hindsight. Each of us can list many reasons why a change is coming and how it is inevitable. But is it really possible to define ahead of time what the next "big thing" is?
http://www.eetimes.com/author.asp?section_id=36&doc_id=1332205&