Toshiba already had its first we-can't-say-it's-Montevina-based-but-it-is laptop, the Qosmio X305, a couple of days ago but the company has now made it, and two others, official - also fleshing out what we know about the X300-series. The new additions are called the Qosmio G50 and F50 and continue to carry the traditional Qosmio multimedia-oriented gauntlet.
Both systems sport the Cell-based SpursEngine processor which Toshiba is calling the Quad Core HD Processor. These four cores are actually SPEs just like the PS3's Cell has but what's more important is what the addition of the chip allows.
Real-time HD upscaling of standard definition content, including DVDs and (presumably) video files played from the hard drive, improved video editing and transcoding speed and hand-gesture control. The latter allows such motions as a "thumbs-up" or a "wave" to be translated to media controls, such as playing and pausing video. The more interesting part, if you ask me, is the video processing though - the PS3 does a pretty good job of this which the Toshiba chip should be capable of matching.
Specs other than that are pretty much non-existent, except for the notebooks' screen sizes, namely 15.4in for the F50 and 18.4in for the G50. It is also known that up to 8GB of RAM (a Montevina hallmark) and 640GB (using dual 320GB drives) of storage can be specified.
Pricing and launch dates are to follow soon.