Cell phones are getting larger to accommodate a larger display and laptops are getting smaller and more portable. As the cellphone gets more expensive and the laptop gets cheaper there will come a time in the not too distant future where they will cross. Which device will it be? The netbook or the smartphone? Who’s going to make the first bookphone?
Add VOIP software and all you need is a Bluetooth headset to make your calls. What’s a carrier to do? Will they offer netbooks on subsidy to get you to commit to their dataplan? It’s already happening.