The Gateway notebook roll-out is official. Sony's is not. Gateway Computer announced three lines of notebook PCs on Monday with 64-bit Windows, while Circuit City prematurely posted images of upcoming Sony notebooks.

Gateway rolled out three notebooks targeted at students. The P series desktop replacement comes with a 17-inch widescreen, the M series with a 15.4-inch screen, and the T series uses a 14.1-inch screen.

All systems come with 64-bit Windows Vista Home Premium and pack 4GB of memory--the minimum for acceptable performance in 64-bit Windows.

The 15-inch "Garnet Red" Gateway M-6848 is spec'd with an Intel Core 2 Duo T5750 processor, 4GB of memory, a 250GB hard disk drive, 802.11a/b/g,a wireless, DVD-R/RW drive, and Vista Home Premium 64-bit with SP1. It retails for $799.99.

The 14-inch "Pacific Blue" Gateway T-6836 notebook has virtually the same specifications. It also retails for $799.99.

Other features include a multimedia panel integrated into the keyboard, DVD burner with LabelFlash technology, and an integrated Webcam.

Meanwhile, details about upcoming Sony notebooks continue to seep out.

Circuit City prematurely posted photos of the upcoming Sony portables. (Though Circuit City has pulled the links, cached images are still accessible.)

Last week, less colorful user-manual images appeared at Notebookreview.com as well as tidbits about various models. Apparently, models will use Intel's next-generation Centrino 2 "Montevina" processor, graphics chips from Advance Micro Devices' ATI unit, and sport 13- and 16-inch screens.