From what I understand the answer to your question is "no".
You might want to check this thread
for more info, and here is a thread
with a working custom rom.
It does seem like one user is going to try to put together something CM-based as well, so there is hope for this tablet.
BTW - your link only sends me to a page where I have to enter my postal code to see the deals - something I'm quite sure won't work in my case since I'm writing this from Spain. Either way - depending on what you're looking for of course - I find the ME301t to be an excellent choice for the money spent. (That's what they call "best bang for the buck", right?)