Nokia Internet tablet

Nokia Internet Tablets is the name given to a range of Nokia mobile Internet appliances products. These tablets fall in the range between a personal digital assistant (PDA) and an Ultra-Mobile PC (UMPC), and slightly below Intel's Mobile Internet device (MID).
Early trials and predecessors.
Nokia had plans for an Internet tablet since before 2000. An early model was test manufactured in 2001, the Nokia M510, which was running on EPOC and featuring an Opera browser, speakers and a 10-inch 800x600 screen, but it was not released because of fears that the market was not ready for it. The M510 was first leaked to the public in 2014.
Prior to the introduction of Nokia's Internet tablets, Nokia unveiled two "media devices" in 2003-04 which were mobile phones but had a form factor similar to the Internet tablets that followed them. The first of this type of device was the Nokia 7700 which was intended for mass production but ended up being canned in favor of the Nokia 7710 which had a slightly more traditional form-factor and better specs.
Maemo.
Nokia Internet Tablets run the Debian Linux-based Maemo, which draws much of its GUI, frameworks, and libraries from the GNOME project. It uses the embedded-targeted Matchbox as its window manager and uses Hildon, a lightweight GTK-based toolkit designed for handheld devices, as its GUI and application framework.
Alternative distributions.
Maemo can be replaced entirely by a number of other Linux distributions.