Bryan Lee, the Microsoft executive responsible for the marketing of the Zune, resigned yesterday.

Lee was the corporate vice president for Microsoft’s Entertainment and Devices Division, and was in charge of marketing Microsoft’s digital music player.

According to Lee and Microsoft, his departure has “absolutely” nothing to do with the Zune’s poor sales, and is a purely personal decision.

As of the moment, the Zune has 10% of the market for digital media players in the United States, while Apple’s iPod has 85%, according to an NPD Group survey, while other more conservative surveys put the Zune dominance at 2%.

More details on Lee’s squirting out of Microsoft from MSNBC.