I loved this book! A contest for high school kids to write an app! It wasn't overly technical, but there were some juicy hacking moments! :-) I did find part of it a bit silly, but the way that part was concluded was great... Makes me wonder how much of this stuff is real? Run out and get your "BuyPhone" now, lol! Great read for any ya reader interested in technology.... Lots of romance included, too, not too sappy, imho... Typical high school stuff. Interesting characters and storyline kept me turning the pages! Recommended!