CFO Peter Oppenheimer has told Merrill Lynch analyst Steven Milunovich that the iPod shuffle market has increased 43% since February dominating 58% of the market.

Mr. Oppenheimer reportedly said Apple was “supply-constrained in March and will be interested to see the April (sales) data.” Mr. Milunovich said he was told by the exec that “Apple isn’t feeling competitive heat yet” in the digital media device market from the likes of Creative, Sony, iRiver and others.

It was also said that Apple may try to advertise more on television.  Surely their competitors need to do more of that too.

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