Update: According to our man Nicholas Negroponte, who took time out of his busy schedule to email us with the info, there are two other variations of the XO headed our way before we see the XO-3. Nick says we'll see the XO-1.5 appear in January for around $200 -- an update to the current version. As we'd heard before, the 1.5 iteration will swap a VIA CPU for the current AMD one, and will double the speed as well as quadruple both the DRAM and Flash memory of the current version. Furthermore, he says that in early 2011 the XO-1.75 (replacing that psychotically awesome 2.0 dual screen model) will make its appearance, and will sport rubber bumpers on the outer casing, an 8.9-inch touchscreen display inside, and will run atop a Marvell ARM processor which will enable two times the speed at a quarter of the power usage. That version will sell for somewhere in the $175 range. Then, no 2.0... straight on to the XO-3.0!