Would it be completely pointless to have a data plan on both your iPhone and your iPad?
A little background information:
My T-Mobile contract expires soon, I plan on switching to Verizon. I haven't upgraded my phone since 2008, with this said, I would also purchase the iPhone 4S device under contract for $100. I'm also getting an iPad 4th gen. For Christmas.
My question is, wouldn't it be rather pointless for me to get a data plan on both my iPhone and my iPad? The only time I would really use wireless internet in public is on my train ride commute - which would be more appropriate to use my iPad to browse the web, go on YouTube, watch movies, or even listen to music.
The only problem is that using internet on my iPad would essentially be less portable than a phone. Meaning, I couldn't go on the internet as many places as I could if I had internet on my phone.
My question is: would I be able to tether internet from my iPad to my iPhone and vice versa? For example, I got a data plan on my iPad, could I tether the internet to my iPhone and use the internet on it?
or
I got a data plan on my iPhone, could I tether the internet from my phone to my iPad and use internet on my iPad? (with a jailbroken iPhone 4S)?
Added (1). Okay, thanks for the advice, guys. As a follow up question - does Verizon offer the wireless hotspot option? Or is that limited to AT&T?