Both tablets were briefly demonstrated during a Sony conference that took place in Munich, Germany, where a video of the Sony S2 in action was captured along with a photo of the Sony S1. Unfortunately, the company did not allow any further pictures to be taken, and neither was it generous on sharing any technical details about the devices.
do know about them, however, is that both the S1 and S2 are expected to come with an NVIDIA Tegra 2 chipset and will be 3G/4G-compatible. Besides that, the tablets will launch running Android Honeycomb, which will be treated to a good deal of customization. With an estimated weight of about 600 grams, the Sony S1 sports a 9.4-inch display and a unique design, which shifts the tablet's center of gravity to the side in order to make holding the unit easier. On the other hand, the Sony S2 carries a resemblance to the Kyocera Echo with its folding design and dual 5.5-inch 1024 by 480 screens.
Sony's tablets are expected to launch in Europe this fall, yet nothing has been mentioned in regards to their price or availability in the U.S. so far.
source: Golem (translated) via Electronista