There are a number of choices for reading PDFs in this price range and display size.
The street pricing tends to drop after the initial release. If you don't need the e-ink
ability to read in the sun, their are plenty of Honeycomb 10" display color LCD devices.
I have the ASUS Pad Transformer myself, but I like the Toshiba Thrive's specs better.
The jetBook Color has the distinction of being the first Color E-Ink eReader of this size.