

I bought a battery pack for my old Ipod nano, which works fine in my iPod Touch. It takes 4 AA batteries and plugs in. I use NiMH rechargables.
I have used my iPod Touch to read digital books and I can tell you that listening to music why reading will run your battery down pretty quick. No quantitative figures, sorry.
And the cost of my iPod battery pack? $16 + shipping.
Any consumer electronics device should have a removable battery, unless the device is really tiny in size. This is such a fundamental design principle. When I go shooting with my digital camera, I always take a spare battery with me, because sometimes it runs out when I'm in the middle of something important. Maybe Apple don't realise it, but it's actually quite useful to be able to easily swap the batteries.
Couldn't agree more. Funny how they seem to be moving further away from this fundamental, sensible design even on their Macbook line. The Air already had this problem, now the new 17-inch mbp does. How long until they simply refuse to have easily replaceable batteries on every product they make? Seems to me they're going backwards.
Weren't legislators in the EU trying to pass a law regarding this, specifically that any consumer device must have a user-replaceable battery? Anyone know what's happening with that? I don't live in the EU but, if such a law were to get passed, Apple would have to rethink this design flaw if they wanted to sell to the EU.
A user replaceable battery makes the gadget bigger, heavier, bulkier. Take your pick.
I don't mind a smaller battery, as long as I know the limitations well beforehand, I don't have a problem with short battery lives. Apple decided, and the market seems to be rewarding them with higher sales. And as for the macbook pro. Battery life is so long, it's almost not a tradeoff to have a non user replaceable battery. And what I would do for that warranty on a battery.