When I saw the Loop for the iPad, I knew it was going to be something that I wanted to use. As shown above, it will hold your iPad in either "portrait" or "landscape" orientation, but if you look at the very front of the Loop, you will see a slight edge there as well. You can rest the iPad at a lower angle, which is more comfortable for typing (see image here).
What is harder to see in the pictures is that the notches to hold the iPad in the upright position (as shown above) are cut a little wider than necessary. This turns out to be a big benefit if you use a case for your iPad, since you can use the Loop without taking it out of the case. Another nice touch is that, when held in portrait mode with the dock connector on the bottom, there is enough clearance to keep the iPad plugged in. The same is not true for the SD card reader and USB camera connector kit accessories for the iPad, but I use those far less often than the sync cable.
The Loop is heavy enough that it won't move around, even if you are tapping on the touchscreen. It has some non-slip material on the bottom of it as well. My only (relatively minor) complaint is that the material doesn't cover the entire bottom of the base, which seems like a strange decision to make; it means there are several edges that can get caught and pulled off, making the Loop uneven. I haven't actually had this happen, it just seems like a risk that could have been easily avoided.
At US$30, the Loop is on the more expensive side of the various iPad stands out there, but it's versatile enough to give you different ways of using it. If my experience with the iCurve is any indicator, you should be able to use this for many years to come. The ability to keep the case on the iPad is a big "win" for me. Given that the Loop's notch is open, I suspect that whenever Apple announces the second version of the iPad, the Loop will be able to hold it securely, too (even if Apple "tweaks" the design, as they have shown they like to do with the iPhone). Of course, only time will tell.