Tiffany Boggs has posted a review at NotebookReview.com of the Toshiba Portege R400 . The R400 is a “convertible” – it has a physical keyboard, but the touchscreen display flips around and lays down over it, turning it into a Tablet PC. It’s powered by an Ultra Low Voltage 1.2Ghz Intel Core Duo. Tiffany noted that this affects Windows Vista performance.
The article is a good read, especially if you are looking for information about convertibles – she goes into detail about the convertible features, and the sturdiness of the hinges (something that is not always the case with some convertibles) and says that It has a solid design that works great in Tablet and notebook mode.