Nokia's roadmap for future smartphones devices has been mysteriously leaked to Engadget Mobile.

The document supposedly shows what the world's biggest phone company has up its sleeve for future quarters, although some models appear to be slated for launch this year.

Highlights of the list include the "Corolla" that gets a 3-inch VGA display and an 8-megapixel camera.

There's also the "Eitri", a QWERTY candybar with a 640 x 350 pressure sensitive touch interface display and high-specced 5-megapixel camera.

In addition, the "Madeleine" looks like it will be aimed at gamers with N-gage support and dedicated gaming keys while the "Ivalo" is said to have a 3.5-inch touchscreen and 5-megapixel camera.

What stage of the R&D process the devices are in and whether they will ever make it to market is not known, but we'll keep you informed as and when we hear more.