To add two cents:
I'm fed up. I'll wait for the SDK and the outcome of
Riocaz' support nightmare. Until then, I'll use the device for reading books, and I'll tell my friends to wait before ordering.
And then,
if there is a SDK, and
if it really opens the machine, and
if I can get a reinstall for much less than 75 Euros, I'll start writing/porting some applications. But not now.