Why this desire to see Boonen turn into a GC guy? It's as if he's a lesser rider because he wins one day races and not grand tours.
He is not a one trick poney like Cipo or Peta. He is an stunningly strong one day rider who also has the ability to sprint with the best of them.
If I remember correctly, he dropped out of last years TDF because of a nasty injury caused by a crash while crossing some tracks. He has the ability to finish stages in the autobus al la Zabel.