It doesn't seem unreasonable to assume the lock screen is only shown shortly after locking and right before waking up, like every other tablet. (And for the e-i

It doesn't seem unreasonable to assume the lock screen is only shown shortly after locking and right before waking up, like every other tablet. (And for the e-ink Kindles, it doesn't seem like much of an issue. E-ink devices already all use screensavers AFAIK and still get months of battery life.)