It is interesting. I guess yesterday an article which compared the % of users using addons on firefox vs those on chrome. Firefox had the higher number. But its probably more of an indicator that chrome is reaching out to mainstream user base.
I don't think that the mobile platform domination will be decided by how many apps the platform has in the app store.
Will it be dominated by the best platform that nails the core use cases best like iPhone as mentioned in above article ? Well maybe, it will.
But then it just might happen that the one with highest distribution channels will win the race.
The whole point of this is that there need be no race. If all you need to compete is to do the core set of 10 apps better than the other guy, it's completely doable. If you need a 200K app ecosystem, it's not.
OS X is a great example of this as well. I switched because it did the basics better than Windows back in the early 2000s. Back when it had virtually no apps and Windows had all of them.
Laptops are different for me because they're big enough and powerful enough to do non-trivial work. I use my phone for checking email and bus-stop web surfing but I have a Macbook instead of something running Ubuntu because I need Photoshop and Ableton Live.
I don't think that the mobile platform domination will be decided by how many apps the platform has in the app store. Will it be dominated by the best platform that nails the core use cases best like iPhone as mentioned in above article ? Well maybe, it will.
But then it just might happen that the one with highest distribution channels will win the race.