E-INK -- http://www.e-ink.com/
+ offer high-resolution displays (http://www.e-ink.com/products/matrix/High_Res.html) + Sony's Reader product will use E-INK's technology in their eBook reader + Slow update time (1000 ms in 2-bit mode, 500 ms in 1-bit mode) + 2.7-3.3 VDC supply voltage, 1800 mW/750 mW peak/typical power consumption + Active area 6 in diagonal, ~3.5 in x 4.8 in + Offer a prototyping kit (which ironically comes pre-configured as a simple eBook reader) including a power adapter, battery, sample 6" display, processor, USB and Bluetooth interfaces, and software for $3000.

NTERA -- http://www.ntera.com/
+ feature 1VDC operating voltage bistable ink-on-paper technology, extremely high contrast ratio over typical LCDs + all current products are more-or-less segmented displays similar to LCDs + NCMux driver board can drive 60-segment alphanumeric tiles, but we would require a large display of these, and this is likely to be very expensive and bulky since one driver board per character is required. + High Resolution Displays are listed as a "Future Application" (http://www.ntera.com/products/future_app.asp). "NTERA is currently working with several major display companies on different approaches to this."