I usually only use the text-to-speech on something that I've already read and want to re-read, or on something I've downloaded off the internet. I tend to actually read stuff that I've paid for.
Discovered yesterday when I woke up to a seriously flaming case of optic neuritis (it's been building up to a crescendo for the past month) that my Kindle Fire is pretty much useless to me right now unless I want to listen to an audiobook. The Kindle 3G, pretty much any of the Kindles that have the text-to-speech in them, are more useful to me right now than the Kindle Fire is.
heck, my iPad is more useful (it has text to speech for things online, and it'll read the screen for me and other stuff) There arent any accessibility apps to download for the Kindle Fire, there are a few for the iPad if it's something that's not built into the iPad (Braille apps, things like that)
My Kindle Fire might end up going to my dad till my eye heals (it better heal!) I'm keeping my Kindle 2 and Kindle 3. (they both have 3G and do text to speech)
~ Never do anything that you wouldn't want to explain to the paramedics. ~ Author Unknown ~
~ "Animals have two functions in society. To taste good and to fit well." ~ Greg Proops, actor ~