T-Mobile customers who have pre-bought the G1 may notice that their data connection suddenly stops working. D’oh! Don’t panic there is nothing wrong with your G1, this is a problem on T-Mobile’s end. Remember that free week of data that you all got when you pre-bought your G1? When that week is over, T-Mobile is turning off the free data and not turning on the paid data for your plan. A quick call to customer service will re-enable the data plan and fix the problem. You can also login to your account and manually add the data plan back on if you prefer to deal with a computer instead of a human. Nothing major, just a heads up for you all G1 owners. We wouldn’t want your data to go belly up at an inopportune time and have you throw your G1 out the window.