I think mtgox is changing the output of the api... looks to be dynamic, probably based on traffic to reduce lag. I will see bitcoinity not report a sale for up to 5 min, then a flood of action and another delay.
Thanks dandirk,
I see pretty much the exact same behavior. Since bitcoinity is AWESOME, i will assume the fault is on the Gox end. Does make it pretty much impossible to do quick trades, though.
I wouldn't take my work for it... I am just guessing. Bitcoinity I am guessing added/upgraded their servers after the crash. So I would guess it is not on their end, but it could be. I also see the same type of delay for bitfloor, though in that case bitfloor is reporting a ddos attacks.
They could also be issues with mtgox and traffic to... during these delays, mtgox also seems to be a little less active when refreshing the sell page/prices.
Maybe someone with more then guesses and observation will chime in.