One Laptop Per Child (OLPC) may not be ready to show off its XO-4 convertible laptop just yet, but chip manufacturer Marvell is demoing it at CES today all the same. The 7.5-inch tablet-laptop hybrid has an infrared touchscreen and is powered by a dual-core Marvell processor that the company says is "miles faster" than before. It'll arrive with either 1GB or 2GB of RAM and 4GB or 8GB of storage, and runs Linux (Fedora 18) with a custom software overlay that OLPC says is "designed for kids fingers." It's finished in the typical white and green OLPC style, along with chunky rotating colors. Marvell told us that it wasn't able to reveal pricing or release information, but OLPC will make an announcement "very soon."