RIM and Motorola both published sales figures for their iPhone and iPad competitors that establish a huge gulf between demand for Apple’s products and competitors’.

After a long wait, the white version of Apple’s iPhone 4 finally went on sale today. Color aside, it’s the same device, just with a white front and back. However reports are coming in that there is, in fact, a difference between the two versions.

A MacRumors reader, iLounge, and Ryan Cash of Marketcircle who posted pictures of the two side-by-side, have found that the white version of the device is ever so slightly thicker than the black version. How much? “A hair,” Cash said. Blog TiPb got a little more precise, measuring the difference at “roughly 0.2 mm.”
Apple lists the depth of both devices at an even 9.3 mm on its iPhone 4 specs page. TiPb, which measured the difference, listed the white version at 9.5 mm. The depth increase is said to be small enough not to affect a number of cases both TiPb and MacRumors have tried out on the two devices, though iLounge points out that snug cases made out of hard materials without give could be problematic.