Yet another confirmation for T-Mobile here. Just received my Micro SIM from T-Mobile last night. Popped it in my Verizon iPad 3 and activated with the 200MB free data and Personal Hotspot is working just fine. Granted, it's not like I'll be doing a lot of tethering with it on just 200MB of data.I can confirm that T-Mobile is a yes.
I picked up a financed Air last night and Personal Hotspot works.
Yep. If you have Verizon's Share Everything plan, you're good to go for no additional cost. Unless of course you go over your data plan.Verizon comes with it built in.
What carriers allow this feature on the iPad Air?