I generally try to steer clear of the rumor-mill, but the more I consider this one, the more I see it being mostly true. Gizmodo indicates the Lenovo X300 will have a few bigger siblings and perhaps one smaller one. A 12-inch model would be dubbed the X200, and there is an expected X400 and X500, which are expected in at 14.1- and 15.4-inches respectively.
It’s not much of a stretch for any of these to see the light of day, although I question if a 14-inch model is needed since 13.3- and 15.4 are likely to meet most people’s needs in these standard sizes. As for a smaller model like the X200? There’s a growing trend towards "full featured but small", so I could see it. In fact, I’d love to see an X100 with a 10-inch screen priced around $800.