I, for example, used AirNav from my phone last night. Is the data
worth $100/year to me? Sure. Is it worth $100/year if I have to
use JavaScript and cookies and whatever other garbage to get to it
(thus rendering it unusable on my phone and most of my other
browers) and can no longer post usable links to it? No way.

What Javascript and cookies and whatever? On AirNav?