I think this device has the Iliad beat in every way except for battery life.
It has better Wifi support, a better browser, better Mobipocket support, comparable PDF support, and it even has a real suspend function (no 40 second boot time here).
I also found a couple of free bonus packs from Microsoft. I so wish I had tried them earlier. My favorite utilities are the registry editor and the Sound Widget. My favorite program, though, is Pocket Paint. As you can imagine, it's a lot of fun on a doodling 10" touchscreen.
The Airpanel also comes with an ink program for note taking: Calligrapher. I've found after a few minutes use that my penmanship on the tablet is as legible as pen on paper. (Since my notes are only semi legible at best, that's not saying much.) Calligrapher is also supposed to be able to from ink to text (just not mine).
As a tablet, I really like this device. I'm torn over whether I can recommend it, though. The Airpanel I have came with a nonstandard OS. This model is supposed to have WinCE 4.1. I have WinCE 3.0. What I have is actually a related Viewsonic device called the Viewpad. The only difference is the OS. Ican recommend the Viewpad or an Airpanel with WinCE 3.0. If you can find either, I would get it. At around $100 on Ebay, it's a bargain.