Apple's competitors just can't compete with the iPod, according to Piper Jaffray analyst Gene Munster.

He's been looking at the market, and notes that while competitors often offer extra features in their music players, they just lack the 'X' factor.

"None of these devices have shown that they can compete in two key areas: user interface and 'cool' factor," he said, as reported by Forbes.

The analyst argues that in order to compete effectively other music players must be marketed at a better price than the iPod - and he reckons that Apple retains an edge here. This is because massive demand for the Apple product means the company benefits from economies of scale that competitors cannot hope to match, without suffering heavy losses.

"We believe this reality will allow Apple to sell iPods at the lowest prices in the market, thus retaining the iPod's pole position for years," he concludes.