Re: slagging off the competition
as a result more existing Android users are switching to iOS than iOS users are switching to Android
I've not seen any stats outside the US to back that up. All-in-all the I-Phone is better hardware but the differences between the high-end devices are now minimal and I think the halo/lockin effect is diminishing: I know lots of people who have IOS and Android devices and are happy with that arrangement.
re. your other assertion about developers preferring IOS. I don't think that this is still the case. I recently read the first piece of an IOS developer praising Google for their support as his company starts to successfully sell to both platforms. Sure, the margins may be higher on IOS but the size of the Android market often more than makes up for that.