Iirc he wanted to play on. They offered him a pay as you play contract and he was pretty sad about the whole deal. Inter came knocking, and Neddy refused and chose retirement instead.
"I'm still enjoying playing but considering my physical and mental condition I understand that the time has come to make way for younger players - they deserve to play,"
"Maybe you think I'm still young but I'm almost 37. I will quit at the end of the season, no matter how well we do in the Champions League or Serie A. The decision is final and I don't think I will change my mind - I don't need to. It is the right time to quit."
"I would love to finish my career with victory in the Champions League,"
"We haven't got a good result tonight but it's not over yet. Anything can happen in the return. I think it is 55-45 to them right now. It will be difficult, but not impossible."
"I have talked a lot with my wife and she is a bit tired too. I need to spend more time with my family who have supported me for so many years. For now I will focus on giving my all in the last three months of the season."
http://www.fifa.com/worldfootball/clubfootball/news/newsid=1032724.html
Regarding the Inter rumours, it's a shame his agent is scum (I think we all know who I'm talking about), he'd whore himself out to gain any sort of attention possible.