For about a year now, there has been a string of posts on 2ch resenting BONES. Before Xamdou was even announced, it was known that BONES was working on it, with Miyaji as the director. These posts claim that Miyaji was completely unreasonable and the staff all hated him.
The production schedule ended up as a complete mess and it has become an uphill battle to finish the initial episodes of the anime, leaving very little breathing room for the later episodes.
Xamdou was originally scheduled to be a Spring anime this year, but because of these production problems they failed to secure any timeslot. It was then believed that Xamdou would have to be Pay-Per-View on the Playstation Network as a last resort.
The most publicized aspect of this event was the leaked list of the BONES staff roll and reveal that a new FMA and DtB was in production.