Researching which mobile map is the best. $100/year vs. free won't be the deciding factor. Looks like you can either download maps or access service via internet. Advantages either way. Tough decision. Thoughts.
BTW, does $30/month per phone for internet access sound reasonable?
$30/month is pretty-much the going rate for Internet access on PDA phones. Actually, that's probably at the low end of the scale.
I find Verizon's VZ Navigator, at $10/month on my LG non-PDA phone is sufficient for my needs. It won't navigate away from a Verizon digital cell tower, though. (Because it uses GPS-a, requiring assistance from the tower, whereas your phone can navigate independently.) And unlimited internet is only $15/month at Verizon on a non-PDA.
You're not supposed to "tether" (use a cable or Bluetooth to access the Internet from a notebook through the phone) but there are mods easily available for most phones, (just service menu twiddling) and it won't be detected if your usage is reasonable.
PDA phone Internet prices are higher because they expect you will have higher usage on the device itself, and the plans usually do not restrict tethering, as well.