The coming battle for third position, involving Blackberry (4.3%) , Bada (3%) and Tizen (arriving in January) is the most fascinating. RIM has managed to almost stabilize, with enterprise customers "willing to keep buying some Blackberries" even now and so BB10 has a real chance of winning this, making Blackberry development suddenly interesting again. At the same time Tommi reports that Samsung's Tizen is very ready to substitute for Bada, and has multiple big backers which might also drive it to overtake BlackBerry.
Finally in the smaller/more obscure category, Meego has gone into "hibernation" with practically no sales to be expected until Sailfish arrives, and Symbian (2.0%), whilst "really on its last legs", has for now overtaken Windows again which peaked at 3% then collapsed back to 1.9% after the abandonment of WP7 devices. Mobile operators, who previously feared that Skype would take over their billing relationships, will almost certainly give a big sigh of relief.
We discussed Gartner's Android numbers recently and Samsung's Android phone success a bit before that.