Kobo's major inspiration for adding waterproofing to the device was a reader competition on Facebook, when the company asked its readers to take pictures of them using the device. More than a few took point-of-view shots of them reading while laying in the bath -- with the device safely nestled inside a Ziploc bag. That's why it sought to remove buttons (the backlight switch has been ditched) and all of the ports are nestled behind a sealed rubber gasket at the base.
Of course, you all want to know what the Aura H20 is like to use. In fact, the new hardware is thinner and lighter than its predecessor, and it's a lot more comfortable in the hand. The (relatively) new E Ink Carta display is significantly better than the Pearl used in prior units, and processing power has gotten to the point where there's almost no lag when switching between pages -- in fact, we're told the speed is 450ms. Since the backlight button has been ditched, you can now activate it by stroking your hand down the left side of the display, or little flicks if you don't want to move that much.
When dunked in a glass of water, which it'll handle for 30 minutes up to depths of a meter, an error message pops up over your text, informing you that you need to wipe the unit down when you get a second. Naturally, you can dismiss this message and continue to read, but we'd imagine that you'd probably want to get out of the pool first. The waterproofing also enables you to rinse the device, so should you spill a glass of wine or Coke, you'll be able to blast the sugar away before it congeals guilt-free -- unless, of course, you leave the port cover open. As before, Kobo is planning to launch the Aura H20 into people's homes on October 1st, priced up at $180 in the US/Canada, £140 in the UK €180 in the various European nations where available.