Digital Trends – When a company called Apple uses an apple as its logo, it wonât come as too much of a surprise that the logo for its forthcoming iCloud music service is of â you guessed it â a cloud. The cloud in question has been spotted at San Franciscoâs Moscone Center West, where the final preparations are being made for the Cupertino companyâs annual Worldwide Developers Conference (WWDC). The gathering kicks off on Monday and runs for the whole week.