Improvements include the perks of Centrino 2, more WWAN and other wireless chips, eSATA and Display Port plugs, thinner dockable laptops and huge ass batteries for all-day usage. The E6400, for instance, boasts 19 hours of battery with a 9-cell. On the teensy end, the E 4200 offers a 12.1-inch WXGA screen in a 2.2 pound form factor, with 32GB and 64GB SSD options. The E4300 bumps that up to 13.3-inches and 3.4 pounds. At the other end of the spectrum, the E 6400 ATG is a 5.6 pound beast designed to withstand drops, dust and moisture. The E 5400, 5500 and 6400 are the mainstreamers, with 14.1-inch and 15.4-inch screens, disc drives and all the other trappings you'd expect.
The 14.1" and 15.4" notebooks will be available in August, the 12.1" and 13.3" models will show up in September and for the XT2 convertible tablet PC you'll have to wait until January 2008.