The service includes a smart application that operates in the background of your computer managing the upload and day-to-day syncing of your music library.
The meters CenterPoint is installing store billing information and upload it three times a day to nearby radio receivers that are connected to computers via broadband over power lines.
The D90 is gaining on the iPhone 3G in usage share, and so is the iPhone 4. iPhone 3G owners upload about a thousand more photos a day than D90 owners, but there are 12 million more images on flickr that came from a D90 than from an iPhone. (43.6 million vs. 31 million).
The song has inspired thousands of people around the world to upload videos of themselves dancing along to the first 30 seconds of the track - up to 4, 000 a day are currently being put onto YouTube, according to the website.