T-Mobile And Nexus One Users Experiencing Data Issues?

Many Nexus One users are complaining on the T-Mobile and Google forums, claiming that the T-Mobile data coverage is totally down. Some users are stating that the SIM card downloads data fine when swapped to other phones, but others are claiming that it’s a T-Mobile network issue. T-Mobile and HTC tech support centers surely have quite a pickle on their hands. The frustrating issue is probably that nobody is entirely sure what the issue is, but hopefully T-Mobile and Google will get to the bottom of this as soon as possible. How has your data service been on your Nexus One or T-Mobile device over the last 1-2 days?