Apple's rumored music-download service, first mentioned here is expected to be released this month on April 28th, according to AppleInsider

Sources are reporting that the service will be built directly into iTunes, suggesting an anticipated update to Apple's digital jukebox software. This version of iTunes will permit users to purchase music on a per-song basis, allowing the user to preview 30-second streamed audio clips of selected songs. Purchasing songs will be as simple as clicking a button once having signed up for Apple's 1-Click purchasing, similar to how ordering prints is implemented in iPhoto.
Other updates expected are iTunes and iPod updates. Similar reports have been circulating over the past few months.

AppleInsider resurfaced under new management in October 2002, but provided inaccurate information prior to MWSF.

As well, one quote from this report: "Sources have suggested that purchased songs may be downloaded in AAC format, upon which the user can 'rip' the selected track to an MP3 to allow it to be burned to a CD" makes little technical sense and casts some doubt on this report.