Anyone out there looking for a new internet service provider in the US might reconsider AT&T.
Currently they're looking to place data caps, similar to the ones that Canadian ISPs and Comcast have, on their DSL and U-Verse services.
http://arstechnica.com/tech-policy/news/2011/03/att-officially-announces-data-caps-wont-talk-about-congestion.ars
Along with that bit of money gouging they're stating that they'll be cracking down on people using third part software to tether their smart phones.
http://www.wired.com/gadgetlab/2011/03/att-tethering/