Data log download via USB stick?

We have an application where a customer would like to download log files on either MD5 or MC4x direct to a USB stick, not by means of tablet (via G1x) or using a computer hooked up to the module.

Will this option be available on either MD5 or MC4x in the future? Our customer is screaming for this functionality!

Is there a workaround that anyone is using perhaps an adapter cable or interface that saves these files as CSV without use of a PC?