I, too, refuse to buy an iPhone until this is resolved. Seriously Apple, hire a grammar expert! 
With the 10$ increase and this, the German iPhone raters appear to look better and better. They already allow tethering (but ironically no IM).
I can understand why they'd charge more... Claiming unlimited data is easy on an iPhone. They already know that the actual use will never be close to that of a landline. Allow tethering, and people are going to use it for everything. Some might even cancel their landline. If they were realistic and marketed the data with a 5GB cap, they wouldn't care what way they are used up. But that just doesn't sound as good as unlimited, does it? As a consequence even the lightest user has to pay up...
That's actually why I prefer the one limited tarif in Germany. Screw unlimited. I rather pay only for what I use.
With the 10$ increase and this, the German iPhone raters appear to look better and better. They already allow tethering (but ironically no IM).
I can understand why they'd charge more... Claiming unlimited data is easy on an iPhone. They already know that the actual use will never be close to that of a landline. Allow tethering, and people are going to use it for everything. Some might even cancel their landline. If they were realistic and marketed the data with a 5GB cap, they wouldn't care what way they are used up. But that just doesn't sound as good as unlimited, does it? As a consequence even the lightest user has to pay up...
That's actually why I prefer the one limited tarif in Germany. Screw unlimited. I rather pay only for what I use.