Screenshots of this website, alternating each shot between Kindle 1 and Kindle 2. I do use Alex King’s WordPress: Mobile Edition plugin to create a less stressful experience for mobile users, including Kindle users.
By the way, if you’re using either Kindle to surf, use the Advanced Mode, which understands a lot more CSS than Basic Mode (for instance, it will properly float images to the left and the right). All of these examples use Advanced Mode.
Even with these simple examples, you can already see the differences in rendering quality between Kindle 1 and Kindle 2, and some other features, including:
Far better image resolution on Kindle 2; the alternating front pages really show this off.
Kindle 2 browser actually underlines links. This was likely missing from Kindle 1 due to how Kindle 1 navigated, where links were more implicit, although that didn’t turn out to be a great choice UI-wise.
Kindle 2’s navigation bar at the top is a bit taller than Kindle 1’s combination of top/bottom navigation bars, but it’s also more modern than Kindle 1. I really don’t notice it when I’m browsing the web.
You can also see the more modern dialog boxes for, say, downloading files.
I’m not sure if the Home menu is an improvement, but this pair of screenshots certainly highlights the differences in basic file organization/navigation between Kindle 1 and Kindle 2.
And now: pictures under the cut!