Mobigame promised that their semi-sequel Edge Extended would be heading to iPhone "this summer".

And with only six days to spare, that promise was upheld.

If you never got around to playing the original Edge puzzle game, let me explain...

From an isometric perspective, your mission is to drag an oddly characterful cube around a series of levels to the exit, taking extreme care not to fall of the paths.

In Edge Extended, there are 44 levels, in fact, complemented by 23 perfectly pitched minimalist tunes and a few new gameplay mechanics.

Those in possession of an iPhone 4 will appreciate that the French developers have included Retina display support in this cube-shifting experience.

Those not in possession of an iPhone 4 can just appreciate that Edge Extended is available for the paltry price of 99c.

Go now.