I don't really see what the problem with the name "Apple" is, honestly. It's not too different from the gemstone and flower words that have been popular as women's names around the world for millennia. It doesn't even sound too far off from "Opal," which was a pretty common girl's name in the early 20th century.
And oddly spelled or pronounced names are nothing new either. "Anthony" came from a misinterpretation of the name "Antony" (which in turn was an alternate version of "Antonius"), but you don't see anyone flipping out over that.
Not to mention all those creepy Puritan names. I had an ancestor named Preserved, no joke.
Personally, I'm more concerned about all the princessy baby names that have been popular for the last decade or so...Olivia, Isabella, Sophia, and so on. Seems like evidence of very young mothers who want a real, live dress-up doll of their very own, and who probably read Twilight. Shudder.