I upgraded last week and haven't noticed anything. That's definitely something that the warranty would cover. I bet if you just walked into an Apple store and told them, they'd swap the battery for you.
__________________
Cassie
My Gear: Nikon D300s w/18-200mm VR & 50mm 1.4
Software: Adobe Photoshop CS4, PSE 9, Lightroom 2
 
|