google can give it away for nothing

Doesn't sound too good.
Where does the revenue come from if someone descides to give away Unwired?
Could you give me some concrete figures, like how much do you pay for access the service and the hourly rate?
Thanx.
Read the article
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http://www.theaustralian.news.com.au/common/story_page/0,5744,17211179%255E31037,00.html