Very significant battery life update, which is nice to see. Though, this seems to be another in a string of poor execution choices by Microsoft. Last cycle, they shipped Windows RT with a preview version of Office that was slow and buggy. That's what went into all the reviews of the device. Nobody covered the final version update. This cycle, they shipped Surface Pro 2 as the successor to a device that was widely panned for its battery life, while leaving 25% of its battery life on the table. All the reviews of the Surface Pro 2 are already out, and they all say "battery life isn't as good as we expected from Haswell + 42 watt-hour battery." How many are going to go back and update their reviews?<p>Sure, Apple this cycle shipped with keyboard/trackpad issues they're working out, but: 1) apparently it didn't affect the review machines; and 2) they didn't affect a part of the machine that was scrutinized for its failures the last go around.<p>I had a thought the other day re: Surface Pro. It's not the device for someone who wants to replace their laptop and their tablet. It's a device for someone who wants to replace their desktop and their tablet.<p>I have noticed that many people who express positive sentiments about the Surface Pro also consider the screen size, battery life and keyboard issues to be less significant because you can plug in a desktop keyboard, mouse, and monitor. My guess is that most of these people ordinarily work from a desktop and see using their Surface Pro for short jaunts away from their desk. That seems to be an excellent use-case for the device. Journalists, on the other hand, seem very cold on the device. My guess is that journalists have fully embraced the trend of using laptops as their primary machine. If you spend most of your time working from a Starbucks, that 10.6" screen and type cover are all you're going to get, and aren't an adequate replacement for a good laptop. Certainly, I can't see myself ever buying one for personal use. My laptop is my only machine, and I don't even have a desk at home, and $1,000+ for what's essentially a netbook-sized display and keyboard isn't going to work.<p>I'm not sure how big that "desktop + tablet" target market is, especially since Microsoft doesn't seem to have aggressively aimed Surface Pro at businesses. I could see it being very handy at work with a dock, but only if it were my actual desktop machine provided by IT. Also, it's probably too expensive for businesses. The 8GB RAM model is $1,299 + $129 for type cover + $200 for dock.