Jon Rubinstein, the former CEO of Palm (and former Apple executive), has left HP.

With Palm hardware now dead and webOS now open-sourced, the writing has been on the wall for this to happen for a while. To hear HP tell it, this was the plan all along. As Arik Hesseldahl writes:

Rubinstein is said to have no immediate plans, and had completed a 12-24 month commitment to stay with HP after the acquisition. “Jon has fulfilled his commitment and we wish him well,” HP spokeswoman Mylene Mangalindan said.

Sounds almost like a prison term.