pics of wife? JOKING
No issues here... i use the tether occasionally and my internet usage hasn't changed at all 5-6 gb per month ...no phone calls or nasty letter from sprint.
*SMACK*
Ok seriously here are the facts:
1) Sprint can't know the packets are not coming from your phone. Because they are.
2) Sprint can guess that you have wireless tethering by inspecting your data.
3) Its not theft of service.
4) I've never heard of even a threat made against someone for "stealing wifi hotspot". So even though they may be aware they don't care. Unlocking the application is literally an application. Its NOT tethering features of your plan. Sprint just wans 30 bucks for it. They don't change your quality of service or anything. In the future unlocking tethering may up your bandwidth cap, but that does not exist at the moment. They care much more about bit torrent traffic than you wifi hotspotting.
5) Sprint shipped a phone with a platform designed for wifi hotspots, its just up to someone to unlock the phone.
6) Root access to android is in NO WAY ILLEGAL.
6a) Android is open source, and thus hacking it is hacking an open source program, thus this is not an iPhone issue.
6b) There is a court ruling at the federal level that backing an iPhone does not break DMCA because you own the hardware.
6c) Hacking the firmware even though its copyrighted and protected is no longer illegal according to the DMCA revisions (last 1 or 2 months)
6d) Rooting your phone voids your warrenty. So don't root then throw it in the bathtub. If you can unroot before returning the phone, you should be pretty safe when it comes to getting a replacement.
7) You are not "hacking" sprint's tethering app, you are just using something else. So no violation there.
8) Nowhere in your contract does it explicitly state "you may not run a rooted android device on this network"
8) My wife won't let me root her phone because rooting = headaches she don't want.