My next one will be a 256 Greylevels 6MPixel device, with pure white and pure black (no need for colors).
It's THE definitive e-book reader (I read mostly novels) and THE digital photo frame...
Until then, I'll switch to the cheapest reader in the market when my iLiad dies (I didn't say "if": in a few months my v2 will be unreadable due to ghosting, wich is getting worse and worse every day...)