Not really, any more than I miss having a SD card. Besides, if I really need to replace the battery I can.
What I would like to see is more cafes and in my case, trains, provide a means of charging my device. That would be nice. I don't need an AC outlet, a USB will suit.
I get the desire to swap out a battery but I don't like that idea much. They're easily lost and not all together safe.