Amazon had been hoping to target the market with its 9.7-inch screen KindleDX e-book reader, for example, but schools said the device wasn't sufficiently interactive and lacked basics such as page numbers and color graphics.
So we feel your pain, original Kindle owners, after Amazon announced a major firmware update that brings native PDF support to the 6-inch Kindle 2 and DX readers with the promise of a staggering 85% increase in battery life to all Kindle 2 devices -- if you haven't already received it OTA, the 2.3 software update is now available for download and installation via USB tethering.