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Projections for future mobile commerce revenues and wireless Internet
subscribers vary so widely from research firm to research firm that
informed figures are nearly impossible to come by, according to a study
released Wednesday.
In its eWireless Report, New York-based Internet statistics firm eMarketer
cited widely disparate estimates regarding mobile advertising spending.
Forecasted U.S. m-advertising revenues for 2005 ranged from Yankee Group’s
$6.1 billion to Ovum’s $4.2 billion to Forrester Research’s $890 million.
The report said that Forrester had serious doubts about consumer
acceptance of ads on cell phones and PDAs.
Among
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