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It's only on the 3GS. Maybe some of it's specs help with accuracy. My 3G shows different amounts left depending on what I'm doing. That'd be really misleading if it was shown as a percentage.

There's no way they'd think it'd be a selling point of the 3GS so there has to be a technical reason.
 
That's so ridiculous! I was looking everywhere and couldn't find that option!
 
You don't get battery percentage on the 3G, but you do get search...just as you do on this very forum. Something you should look into...
 
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