As promised, our Editor-in-Chief Josh Topolsky made an appearance on Late Night with Jimmy Fallon last night, demoing the iPhone 5 alongside Amazon's new Kindle Paperwhite and Kindle Fire HD. If you missed it, check out the video below — topics include how best to read 50 Shades of Grey one-handed, and the "disgusting" speed of LTE (a.k.a. "Laser Technology Engineering") on the iPhone 5. For a more in-depth look at Apple's latest handset, head over to Josh's full-length review.