I'm surprised there has yet to be a discussion on Eoin Colfer's addition to the Hitchhiker's series.
I'm slowing making my way through the copy I picked up in Ireland last month. Slowing because life keeps getting in the way, and also because, well it isn't holding my attention as well as the others. Having said that it was a long time ago that I read the others, so they may not hold my attention now - though I do enjoy listening to them.