The Gigabyte T1028 is a tablet style netbook. It's quite a bit more expensive than this device, and weighs in at about 6 times the weight, plus the battery only lasts about 5 hours. I do use it to read from the B&N library, and their eReader software is some of the best I've seen on a PC, but even with the tablet format, it's heavy and clunky compared to the dedicated eReader product.
I didn't mind reading books on my crackberry 8800, but the large screen is much more pleasing to use.
I was actually expecting a larger reader, based on an interview with the manufacturer of the product, so what they introduced is something of a surprise. I guess I wouldn't be surprised to see a KindleDX sized device to be announced soon, as Plastic Logic hinted that they were working on something like that.