So anyway, slight price difference there. I ended up receiving my card reader today and plugged my SIM card in. I had access to the data using the included software with no problem. Trying to access the data through Windows Explorer just came up with the "no disk" message.
I'm wondering if anyone else has done much here and/or whether you could recommend some other software (non-commercial). I'm curious about being able to recover deleted SMS/text messages (possibly removed phone numbers). No real project or anything, just personal interest. I've googled for other software packages and have come across a few (haven't tried 'em yet), but thought I'd post ahead of time.