Originally Posted by greyparrot
I just received update, 2.1 (337560062) on my DX. I don't know what changed, but I did get the 'Software update' warning and a reboot.
Interesting. That's the version mine arrived with 3 weeks ago. I've also confirmed from Amazon's site that this was the shipping version. There have been no firmware updates. It appears to have simply been a PRL update for the radio.
[From Amazon: Kindle DX: Kindle 2.1 (337560062) comes with the device]