Looks like the
Entourage Edge might do what you want. It has two screens, a stylus, onscreen keyboard, and it has bluetooth.
The scenario I imagine working with would be to fold the device back on itself, so the eink part was facing you and the LED screen was flat on the table. Then you could use a bluetooth or usb keyboard to type your notes.
Or you could just use the stylus. Try their demo, see what you think.