I think the Android is the last option that Nokia is considering. If they fail totally in the smart phone category, who knows? But it's not gonna happen soon.

They have Navteq, they do not want to use Google's maps and navigation. They invested loads on money when purchasing Navteq and have spent more money to developer services suitable for mobile phone use. They have their own app store (sigh...), they do not want to send that money to Android Market. They are trying to pull together a content provider portfolio, like Apple has done.

My guess is that Samsung will try to push their Bada as much as possible and try to get rid of MS and/or Android. Samsung also got stuck with Symbian, but they took a different route. There's no point in using three different platforms, and the future of Samsung seems to be similar to Nokia's - independent.

Bottom line, Android is an unrealistic option to Nokia. Big corporates do not want to use Android. It will used by small players and corporates that are seriously struggling. Too much money is going to other pockets when using Android.