I would like to format SD card remotely (without removing it from board).

I'm looking for SD card emulator (like [FaceDancer21](http://int3.cc/products/facedancer21) for USB) or something like SD Dual-Host Multiplexer ([FSSD07](http://www.fairchildsemi.com/ds/FS/FSSD07.pdf)).

Making my own solution with FSSD07 seems little bit complicated. 

Do you know about any other/easier method to format SD card remotely?