pro⋅duc⋅tive [pruh-duhk-tiv]
–adjective
1. having the power of producing; generative; creative: a productive effort.
Am I still getting work done when I use the web app? Yes. Am I being productive when it fits my needs? Yes. Do I live my life and work according to Shenaniganz08's lifestyle? No
If your iPhone replaced your laptop then you clearly where never using your computer for actual productivity (photoshop, excel, multitasking, researching, matlab, etc)
It's pretty pointless to keep arguing with you, like I said before, Apple is banking that people like you will be happy with the iPad, basically people that only need an internet access point
That said I do apologize for making a generalized term such as "dicking around" , as you pointed out, some people can function/be productive with just an internet terminal