I know, that this question has been asked many times, so I'll try to formulate it a little different. I know, that Google wants to abandon USB Mass Storage (UMS) with Ice Cream Sandwich (ICS) and focus on MTP / PTP.
This is however a pain in the @ss for most users. Since the Transformer Prime (TF-201) has only 1 partition, which can not be "exported" via UMS - because it has the system on it - would it be possible to modify ICS so, that the internal storage will be partitioned? Let's say 5GB for ICS and Apps, the rest on a separate partition. And the second partition could act like an "SD Card", like it's on most phones?
Would this somehow be possible?
I prefer UMS over MTP/PTP, since the latter 2 are not usable on Linux, and even in Windows Total Commander does not show the MTP/PTP devices (no official support, no plugins that work...) and I'm "forced" to use Windows Explorer