Recommended way of pimping Scala types (rather than using implicit conversions) according to Jorge's laws in http://dl.dropbox.com/u/1679797/Scalathon/CanBeConfusing.pdf

gistfile1.sbt

class ByteArrayWrapper(bytes: Array[Byte]) {
  def fromUtf8: String = {
    "Converted to String."
  }
}
object ByteArrayWrapper {
  implicit def makeByteArrayWrapper(bytes: Array[Byte]): ByteArrayWrapper = new ByteArrayWrapper(bytes)
}

object byteImplicit extends App {
  import ByteArrayWrapper._
  println("start")
  val b = Array[Byte](32,30)
  println("b = " + b.fromUtf8)
  println("done")
}