Thanks for your interest!
Yes, but all existing solutions are somewhat bulky ... which really contrast with the sleak devices!!
A tiny microUSB dongle that integrates seamlessly with the device would be marvelous (it could be not bigger than 1 x 1 x 0.5 cm) ... or an other approach would be to integrate the storage in the case (where there could be a heck of storage) ...
If I proceed to the DIY, I would post the pictures.