I don't remember exactly if at their last bid they were alone, but one thing I recall to have read is that at least at one point they did bid teaming along with Intel.
I apologize but I was referring to the OP's article about Google getting the offer to team up with MS but choosing to go alone at it, for the Novell deal. I combined the $3.14bil Nortel bid with the info in the article about the Novell bid. My mistake. Will update my previous post. Novell and Nortel, this patent stuff is already confusing and these names don't help! jk