Actually.. I just solved it!!!
It was the theme I used for my site (Called Velle Elle). I have restored the theme to the default one and.. VOILA! Working like a charm!
I seem to have the exact same problem.
In my case, I am running 3 blogs from the same domain name (one under www, 2 under subdomains). The one blog that is failing is the blog written mainly in French (or non english). I am wondering if this could be the cause.
I am seeing the exact same errors. I’ll try all tricks suggested on the page.
I wish we could really debug iPhones app…