Interesting stats Goshzilla.
I'd be even more intrigued to know what the stats are for the devices that those books will be read on.
For instance, if the iPad has sold over half a million in a few days, at a minimum price of $499 then that's $250 million+ on its own for the hardware. I forget the figure they claim for book downloads already, but it's also substantial.
Some of the dedicated e-book readers currently on offer quite frankly seem like overpriced toys with annoying restrictions, limited functionality, and fairly low chance of long term success. Yet I'd guess there's a good chance that some will lift their game sufficiently to carve out a reasonable enough market share to survive. So it would be interesting to know what sort of figures the various candidates are getting now.
Would anybody care to hazard a guess as to what brands of e-reader will be still doing well in 5 years time, or how they will have changed?