Piper Jaffray analyst, Gene Munster, says Apple is on course to sell 25 million iPods during the current quarter, based on traditional sales patterns that suggest 64 percent of the product's sales take place in December.

"Over the past three December quarters, iPod unit shipments were broken down monthly as follows (on average): October - 12 per cent, November - 24 per cent, and December - 64 per cent," he wrote in a note to clients released this week.

Munster believes that the new iPods introduced in September will have raised October sales levels, as they offer significant improvements on the product range.

"Our analysis points to iPod units of between 24 million and 25 million in the December 2007 quarter, compared to our estimate of 23.5 million and the Street consensus of approximately 23 million," he said.