Earlier this year, Hudson Square Research analyst Daniel Ernst issued estimates for Rockstar Games' Grand Theft Auto IV, pegging 2008 sales for the title at 13 million copies. Today, Ernst upped his estimate to 15 million on word from Take-Two that the publisher had already sold through 8.5 million copies of GTA IV, with 11 million shipped to retailers. Ernst noted that "We expect GTA IV sales to re-accelerate in the latter part of year in conjunction with the seasonal holiday period."
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