Collusion only applys if you negotiate in order to defraud or get an unfair advantage. The fact that every airline charges the same thing for a ticket between NY and SF is not evidence of collusion -- it would be collusion if they announced price changes at the exact same time. (This just means we see them negotiate in public -- Party A raises price, sees if party B will raise price to match. If they don't, party A lowers the price back down. Completely legal)

Pricing on mobile data is still a rapidly evolving space. After years of two years at $60 and we'll throw in an air card, we're finally starting to see carriers realize there's money to be made from people not on an expense account.

Some new business models:
The Kindle
The iPad
Data Jack
Verizon's Palm plans they released last week

This space is going to look entirely different in six months, and within two years the $10 a day for internet charge at hotels is going to seem as quant as their telephone pricing.