Yesterday's speculation has turned into today's fact. The ultraslim Lenovo ThinkPad X1 is most definitely real, coming soon, and just so happens to be packing some fancy new battery technology as well. This intel comes straight from Lenovo's own servers, where a highly informative PDF (intended for reseller partners, but accessible to all) dishes the dirt on the upcoming laptop. The X1's "slice" battery won't be user-replaceable, but what you lose in flexibility will be made up for in sheer performance gains, as Lenovo is touting it'll last three times as long as a normal battery and will recharge 2.5 times faster than previous