Today when I tried the Wifi Hotspot with my laptop, I got forwarded to the T-Mobile web site telling me to sign up for the Wifi hotspot service. Same result when I tried USB tethering with the laptop. I use the hotspot or tethering a few times a week, so I think this is something new T-Mobile US has put in. I thought they asked the user to sign up only if they're using Android ICS, seems now they're moving to other platforms. Anyone has seen this also? and know any workaround? The block seems only on web only, using user-agent likely, as I can still use other data applications (also strangely enough some google sites still working, like search and image).