The Kobo Mini, which finally reached the US market when it showed up on the Best Buy website Sunday night, is Kobo's $80 entry into the tiny and cheap niche. It has the price and specs to go head to head with the K4.
This ereader is a teeny, tiny thing which would disappear under my K4. It has a 5" screen, Wifi, the same 2GB of storage as my K4, and it one-ups the K4 by including a touchscreen and lots of formatting options.
Counting the Kobo Wifi (stuck in a closet) and my Kobo Touch, this is my third Kobo device. It's the first that I've liked. I never did get my Kobo Touch to work right. Like many KT owners, I found that the touchscreen on my device never worked right. Luckily the Kobo Mini doesn't seem to have the same touchscreen issues.
Setup was a pain in the ass; I had to go through setting up my Wifi password 3 times thanks to the updates forced down my throat, and the onscreen keyboard is quite picky about whether it would notice when I pressed a button. And the Mini insisted on downloading all of my Kobo purchases before it allowed me to go further. But once I got past that 2 hours headache, I have to say I like the Mini.
After playing with it for about 15 minutes I decided to set aside the K4 which I had been reading on and continue reading on the Kobo Mini. I copied over the several ebooks I have in progress and they look great. And just to put it in perspective, I have a Kindle Paperwhite and a Sony Reader T2 and T1 on my desk. I'm not using any of those ereaders for my own casual reading.
Let's see how long this lasts.