There has been a lot of new technology shown at the 2006 International Consumer Electronics Show in Las Vegas during the past few days. One piece of technology that will likely make it into Macs relatively soon are Blu-Ray drives, and several of these were displayed at CES. Along with its desktop Blu-ray drive, Panasonic unveiled its Blu-ray slot-load laptop drive, which they first announced back in October.
This drive burns CDs, DVDs, and Blu-ray discs. Panasonic is a long-time supplier of Mac laptop slot-load drives, and I would expect that Mac laptops with these would be released by Q3 2006. Toshiba has also announced laptop HD-DVD drives, but Apple has already stated its preference for Blu-ray.