This was my conclusion as well. I spent quite some time doing a cost analysis. Yes the iPhone plan is the more expensive - but not by very much. Also, there's an undocumented 550 minute family plan you can get for $10 cheaper. AT&T offers lots of corporate discounts to employees as well - check to see if your railroad has an agreement. I get a 25% discount on my monthly bill due to who I work for.
I agree with this as well (man, I'm agreeing w/ Squid on way too much today.) Though I suppose this doesn't help FC's situation too much. I like Safari - it's a cell phone, not a laptop. My guess is Safari will be updated w/ patches to work w/ that stuff - though I almost hope not. I hate flash dependent websites.I suggest that sites which incorporate those technologies in the login area are poorly designed.
On another note, be careful when using your iPhone for your SCUBA calculations. Those apps don't go through any kind of quality check. I downloaded a unit converter that was great - until the very first calculation I did on it I found the Pa to psi conversion was WRONG. Not good - just glad I wasn't using it for anything important at the time.