Engadget has scored an internal HP document that reveals and otherwise confirms most of the Slate's specifications. Presumably intended for employee eyes only, the slide shows a side-by-side comparison of the Slate and iPad, complete with major pros and cons highlighted.
For $550 ($50 more than the cheapest iPad), the Slate offers an 8.9-inch 1024x600 capacitive multitouch display, a 1.6GHz Intel Atom Z530 processor and UMA graphics with an accelerator for 1080p media playback, 1GB of DDR2 RAM, and 32GB of flash storage (there's also a $600 model with 64GB of storage).
Additional features include an SD/SDHC/SDXC card reader (up to 128GB), a USB 2.0 port, a dock connector (power, audio in/out, HDMI out, USB), a SIM card tray, front and back-mounted cameras, up to five hours of life with a two-cell battery, and it runs Windows 7 Home Premium with an HP touch-optimized UI.
The company feels that the Slate has an advantage when it comes to processing power, as well as its pen/digitizer support, card reader, USB port, Dock support, conventional SIM card tray, and its cameras. Meanwhile, HP is threatened by the iPad's 1024x768 display resolution, its 802.11a/b/g/n support, its 10-hour battery life, and its lower starting price.