The two biggest down sides for me are the price and lack of WiFi. The former should correct itself soon, I believe. While the Kindle has its pros and cons, perhaps the most important contribution it has made to the technology market thus far has been that

Today you'll be able to download a collection of passwords and wordlist dictionaries for cracking in Kali Linux. A wordlist or a password dictionary is a collection of passwords stored in plain text.

Linux is a free and open-source kernel developed by Linus Torvalds, a Unix-like operating system clone. XKCD comic has a long tradition for including