Law of attraction: handset or wireless service provider?
Up to Handset Design
Love your Handset?
A study by Google has shown that wireless customers shop by handset brand at least as much as by wireless carrier: http://www.rcrwireless.com/article/20081028/WIRELESS/810289995/1081/proof-that-handset-brands-help-sell-wireless-plans
What attract customers to a specific brand? Would you buy your next phone from the same manufacturer, or would you switch brands?