Technically? Nothing at all. In fact, Maemo works very well for me. Note that I didn't write the article, and I have no strong opinion on this.

But, some things are simple truths: Android appears to have a much stronger mindshare, more active development, wider device support, and inertia. (Symbian has inertia also, but in the same way Windows has inertia as an operating system. It's just about good enough, but rarely enough for people to get excited.) As a pathway, the scenario the article proposes seems feasible: Adopt a tried and tested mobile OS, and focus once again on hardware design.

It's an interesting thought experiment. The other thought experiment is MeeGo: If they get it right early, and push it out simultaneously on a couple of high-end handsets and market it because it's so damn good, then they can make an impact.

That's what they're lacking: impact. Let's be fair, that's one reason Apple have been so successful: they know how to make that impact. That's a great thing, and Nokia could learn from that, surely?