I haven't seen any delays at all, but that might be me. I've checked Pingdom however and I've noticed several really small downtimes (so small that Pingdom hadn't informed me about them) and seen a few loading time spikes in there. I also noticed that there was a huge load on the server, a lot of bandwith being used and a lot of CPU activity. Probably something went wrong. 
I've got a daemon running on the server that checks everything, so it should be okay now. I have rebooted the server though, but it should be fixed now.
Kevin