Kindle WiFi

If you're were thinking of ordering one of Amazon's brand-new Kindle e-readers, get in line. Just five days after announcing the new Kindle 3G Kindle WiFi models, both devices are sold out, and anyone who pre-orders now won't get one until Sept. 4, a week after the original ship date.

Amazon has just released a new Kindle that starts at $139, which is $10 less than the competing Barnes and Noble Nook. The new Amazon Kindle comes in two models; the Kindle WiFi for $139 and the Kindle 3G for $189. Both models are available to pre-order and will be released on August 27th just in...