Sorry for the late reply...
I do consider the Iliad's battery life to be extremely weak and the boot imtes to be too long.
This is due to the way I read. I'm not somebody who commutes regularly or spends lots of time in aeroplanes where there is nothing else to do but reading...
I like to pick up a book when I have a few minutes somehwere, read a few pages and then put it away again. This simply does not work with the Iliad because if I leave it on after reading during breakfast it'll be down to almost half battery by the time I pick it up for some afternoon reading. If you read for a few minutes while visiting the bathroom you simply don't want to wait for the device to start and the book to load.
I did not realize this at first, but after I while I found that my reading "throughput" (amount of books read in a certain time) went down considerably when I was using the Iliad and went up again quite a bit when I used the STAReBOOK.
I'm not going to start a vendette against the Iliad (again) now, but I still greatly regret it's shortcomings in these respects...
Now, back to topic!