with more than double the brightness

The LG B (center), appears to be much brighter than the iPhone 4 (left) and the Galaxy S (right).
LG appears to be really upping its ante in the high-end smartphone market in 2011. First, we have the announcement of the world's first dual-core smartphone, the Optimus 2X. Now, Phandroid has gotten their hands on some shots of an ultra-bright, ultra-slim Android-based device that could take the iPhone 4 to task in either department.
The device, codenamed the LG B, appears to be brighter than both the iPhone 4 and the Galaxy S, and is slimmer than "the world's slimmest smartphone," the iPhone 4.
Little else is known about the device, except that it boasts a 4-inch IPS LCS screen, and that its brightness can more than double that of the Galaxy S and iPhone 4.
Pricing, availability, and any further information is unknown at this time. But the LG B looks to be a promising Android-based contender.

LG B (right) is slimmer than the iPhone 4 (left)

What appears to be a spec sheet, with the LG B as "B", Galaxy S as "S", and iPhone 4 as "R".