Siemens is coming out with a portable digital music player that can connect to a cellphone to wirelessly download songs from an online music service. The player stores the songs on an SD memory card, and will also play regular MP3s transferred from a PC too, but songs downloaded over the phone can’t be copied onto a PC or shared. At least not easily. Using a cellphone with GPRS it should take about three to nine minutes to download one track. British carrier O2 will be the first to offer the service, with other carriers in the US, Europe, and South America expected to get onboard next year.