I've read many of the threads outlining issues with Gemplus SIMs and the GSM 650. I'm using an unlocked 650 on T-Mobile and my SIM is a GD version. I'm also having many of the issues described with 650s so I won't repeat them here. Two questions:

1) Does anyone know if GD SIMs have issues like Gemplus?

2) Does anyone know if T-Mo has Axalto SIMs?