As was rumored, Microsoft yesterday announced that it will be offering a new tablet computer called "Surface" sometime this fall. It's about the same thickness and weight as an iPad, and has a 10.6-inch screen compared to the iPad's 9.7. The aspect ratio is 16:9, making it ideal for movies, whereas the iPad's aspect ratio is 4:3. Key features are a built-in kickstand that props up the tablet, and a cover/keyboard that makes it like a laptop or ultrabook. No word on pricing.