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Nokia N810 Internet Tablet Review
<<<... In addition to a physical keyboard, this device has two on-screen ones. One of these is small and designed to let you tap out letters with the stylus, and the other lets you type with your fingertips. Both of these are nice and do what they are supposed to do, but the hardware keyboard is so good I see little need for them. Next to the keyboard is the Directional Pad (D-pad). This allows you to control the N810 without touching the screen.
There are other buttons, too. One of the most important of these is the "Full Screen" button on the top. By default, applications do not take up the whole screen, leaving a space on the left side to make it easy for you switch to another app, and a space at the top to display the status icons. As its name suggests, pushing the Full Screen button expands all the running applications to take up the whole screen, which is very nice for things like web pages.
Also on the top are what I like to call the More and Less buttons. What these do depends on the application you're running. If it's the web browser they zoom in and out, but if it's the Media Player they control the volume. Just to one side of these is the Power Key. Pushing this opens a menu of common tasks: lock the touchscreen and other keys, shut off wireless networking, lock the device, and shut it completely down. To save time, also on the top is a button dedicated to locking and unlocking the touchscreen and other keys. I go into this in more depth in the Battery Life section of this review. Beside the touchscreen is the Back Button (also useful in Web browsing) and a Windows button. Pushing this displays a list of all the windows that are currently open, allowing you to quickly switch between them or close unwanted ones. Down below the D-Pad is the Menu Key, which opens the drop-down menu just about every application has to allow you to access additional functions, like Save, Settings, etc. more>>>