yes if you don't have it ensure that you have lots of followers on the interwebs, then throw all your toys out of the pram, slag off Apple's elitist "deny everything" policies and berate their store/brand/etc and then out of the blue they'll phone you up, ask "if we fix it will you be happy to use our products again?" say yes and then get a replacement macbookpro. Alternatively go into an apple reseller and they may suggest some kind of "accident" which is then covered by your home contents.
no one will have had an iPhone4 for long enough to know if the battery fails, I've a feeling apple care doesn't cover batteries?
all in all the iPhone4 battery is pretty good, it lasts all day and thats using the phone a reasonable amount and using internet tethering. I always charge my phone over night.
Nokia lost me as a phone customer with the diabolical n97, quite possibly the most flawed "smartphone" I've ever had the inconvenience to own, the best thing I ever did with that phone was sell it for scrap to the catfoodwhorehouse.