[quote name='SDC']Woah, props to Nintendo for a $15 user-replaceable battery. I was hype that the PSP 1/2/3 series had user-replaceable batteries, but hackers ruined the fun on that one. I doubt the NGP will have it either.[/QUOTE]
[quote name='Justme8800']????
What are you on about? The only game system that's ever had a non-user-replacable battery is the PSP Go, and we all saw how well that went. (I wouldn't put it past Sony to do it again, agree with you there.) And the only systems that have ever been "hackable" using batteries are the PSP 1000-2000 series (hackers have done diddly squat with the PSP 3000 battery). Don't take shots at "hackers" for this, it was Sony who put user-servicing in the battery in the first place. Nintendo wouldn't do something that stupid.

[/QUOTE]
As far as we know, the NGP does NOT have a user replaceable battery, which is the only thing I hate about it-everything else rocks so far as I can see.
The PSP, not only was it replaceable, and easily replaceable, the system actually worked without it. The GBA-SP, DS, DSi XL, and I presume 3DS do NOT work without a battery in place, which of course is potentially bad for years down the road...
The NGP? Apparently just as bad or worse. I don't know if lithium batteries pose any kind of leaking hazard or anything either if they're just sitting there either. The NGP could end up with zero shelf life for all I know.
Now they claim they did it because of the back touchscreen, which actually sounds kind of plausible. Of course my solution? Ditch the touch screen. (Though as touch screens go, the tech the NGP uses is better than the 3/DS, and I actually think the idea of sticking a second touch screen BEHIND the unit so you can use it without smudging up or obscuring the screen is kind of innovative, but after the failure the DS touch screen was for gameplay, I'm not holding my breath for it to do anything useful.)