ThinkPad aficionados mourning the loss of the X300 series of ultraportable laptops might have something mighty fine to look forward to in the near future. A ThinkPad X1 has shown up at Swiss e-tailer Tell IT systems and other online locations, replete with a 2.5GHz Core i5-2520M CPU, a 160GB SSD, a 13.3-inch Gorilla Glass screen, and as you can see above, a profile thin enough to rival the likes of the Samsung Series 9 and Apple MacBook Air. The X1 is said to be 21.5mm thick, so it doesn't quite match those crazy cats, but -- provided we're not looking at an extremely elaborate hoax here -- it'll still be the thinnest ThinkPad by far when it launches. One 8GB stick of RAM, an SDXC card reader, and a 1366 x 768 resolution fill out the list of salient specs, while a price of 2,585 CHF ($2,920) sits alongside a promised delivery date of May 20th on Tell IT's website. You'll find a couple more images of Lenovo's purported new bread slicer after the break.