Hi,

for those who have Kindle at home and don't want to use Amazon's Infrastructure I prepared this blog post which describes how to jailbreak your Kindle and install open-source software on it :)

After you are done you will:

• have KOReader installed
• be able to load epub books into the Kindle via email
• create epub books from browser tabs

Post here: Kindle Jailbreak

I believe that if you already have Kindle laying around it could be beneficial to use it without Amazon software instead of buying Kobo/another alternatives.
Or course - don't buy a brand new Kindle just to do the jailbreak, you can invest your money to a different company