Green House, a Japanese Corporation has launched a memory stick that packs a massive 4GB memory. With high-speed USB2.0 transfer, you can easily read/write the data or transfer it to another computer and it has a maximum data rate of 480Mbps. The GH-UFD4GR can be used on a Mac or a Windows based PC. It measures 57.8×18.4×10.5mm and weights approximately 10g. It will be up for sale this December in Japan. No word on pricing.