BTW, Amazon still have refurbished K3 in stock, and I think they're a good value. The K3 Wifi is still listed for $99, and while that's only $10 less than the K4, the K3 is also a more capable ebook reader. it has more storage, more app support, and it has speakers. I'd still get it over the K4.
You can also buy the refurbished K3 3G for $129. That's $60 less than the Kindle touch will cost when it ships, and unlike the kTouch the K3 3G will still let you browse over the 3G connection.