Earnest question: What was so hard about getting a polished Maemo (or Meego) out the door?

I considered Diablo on my N800 pretty damn good. I spent two days customizing an N810 for a non-techy friend (adding and tweaking browsers and apps, putting the apps she would use in Personal Menu, setting up and simplifying Maemo Mapper, etc.) and, except for the lack of a simple and integrated PIM, it was a pretty good consumer device for her. Nokia could have been doing that work and making it consumer-frendly out of the box.

Then with Fremantle they had phone integration and other improvements.

After accomplishing all that, they spent hundreds of millions of dollars, and still couldn't get it done right?

I mean it: What the heck went wrong? What was so hard?