With SD Tools you can check your microSD card information (Name, Date, MID, OEMID,...).
You can check if your card is fake. (Check serial number and MID and OEMID).
You can also benchmark sd card writing and reading speeds.
You can also submit results and information to internet.
In future there will be results. (As soon I got enough results).
Please write to me if there are any bugs. (via market email).
Free Download from Android Market: