Does anyone know what happened to the motorcycle? What did Hagrid do with it and where did he hide it?

I think that maybe Sirius' motorcycle may have had a mind of it's own and thus ended up going wherever it wanted once it's job of getting Harry to where he needed to be was over.

Of course, it is possible that Hagrid still has it somewhere in the forest and plans on giving it to Harry once he turns of age.

There was hint and rumour that it might have been stored up in one of Hagrids "capacious pockets." Though when I heard that one I thought how dumb, but then after thinking about it why not? It seems that just about everything and anything would fit into his coat pockets.