Intel will show the world's smallest Solid State Disk (SSD) at the CES 2008 in January. The Intel Z-140 PATA SSD is smaller than a penny and lighter than a drop of water.

The Intel Z-P140 PATA SSD comes in 2GB and 4GB densities. The technology is extendable to 16GB.
Intel targets next generation mobile devices with their new tiny SSD. Another size comparison that might help to sink it in how small this new flash storage drive is: It is 400x smaller than a 1.8" hard-drive.

The measurements of the Intel Z-P140 are 12x18x1.8mm and the weight is 0.6g. Read data throughput is 40MB/s and write data throughput is 30MB/s.
More CES 2008 News.