I ordered a raincover for my Guru and Loca back in July 2012, and I am still waiting. They have recently confirmed that they still have my order.
I love the bags, but I really hope they get their stock issues worked out.
I am thinking about ordering the Navin. I am not sure I want to have another thing on back order.
That is odd, because I ordered a rain cover for my Guru in January 2013, and I got it a couple of weeks later. My order was shipped from the US warehouse. I suggest an angry chat with them.