Anyone using an Android Tablet to view images on a 5D MKII?

I'm trying to locate an app to view my RAW files directly from my 5D MKII without copying them to the Tablet. Anyone have this sort of workflow? Even viewing from a Card Reader would be ok.

I have the 64GB Lenovo Thinkpad Tablet with the two USB Ports (with Host Controller). I can use DSLR Controller or Remote your Cam Apps, but they activate the live view functions first.

What I really want is a Gallery App that can extract the jpg preview from my RAW Files and display them on my Tablet.

There seems to be a few Apps that can do some of these things but not all.

Any ideas (apart from buying the Ipad of course)?

TIA.