Samsung has announced it's got a new 13.3-inch display with a staggering 3200 x 1800 resolution ready to plop into new Ultrabooks. Take that, MacBook Retina and Chromebook Pixel.
I got a Vaio Duo 11 last week, with 1080p, with the problem that the desktop interface if almost to small to use, even with mouse(almost, I have enough dexterity, but a bigger interface would be nice never the less).
You can scale windows up to have bigger buttons and all, but it does so by telling apps to render at a smaller resolution and blowing it up to 1080p, which results in terrible looking apps.
Windows and their app developers really should start to rethink UI scalability for their apps.
Edit: Then again, I just played Skyrim on that thing, and have to say that the pixel density would be awesome for games.