What is the issue with ports? It's a laptop
I'm currently using a Thinkpad X32 at work. It has, wait for it, no optical drive. I use it in it's docking station when at my desk when i plug in a monitor, power, and a usb hub - because it has limited ports and i need a mouse, keyboard, usb cable to charge my blackberry, a port to plug in my usb key. I tend to install apps when i'm at my desk and rarely use my optical drive.
When I'm working on the move I don't plug anything into it except my power cable and maybe a usb key. This is apple thinking smart and asking what you actually *need* from a laptop. Few people buying a 2kusd ultrasmall laptop are not going to have some other machine they can use for the rare time they need an optical drive and many of my app installs are downloads from the net anyway. As for ethernet - how often do you move a large enough volume of files that this is going to be an issue. Copying your music collection is a one time action so it can take a while without it being a problem.
On portability it's the weight i look at - that's why i have the X32. I'm carrying a bag that's big enough to take an A4 envelope, and usually have a file or sheaf of papers with me, so something with a bigger screen at the same weight as the X32 is no more effort to carry and better to work with.
I think they've got it right. It's not the one for me as a personal machine - given I rarely carry my personal laptop anywhere outside the house it's got no advantages over a Macbook - but if my employer switched to Apple i'd take this over a macbook or macbook pro.