They surely do not have (done everything they can). And btw it's getting some success, selling better and better. Of course still far than the two first ones, but gaining market share. What's wrong with you ? Why do you want them dead so bad ? Ever tried it ? It's real good, and very different than the first two. Having it dead (or not) won't resurrect the Amiga, you know ?
Nokia sells more phones a year than Commodore ever sold Amiga in its entire lifetime...