I had previously been running the mobile site and the iPhone application off of an older server. That server had some problems yesterday and the mobile site was down for some period of time until I got that fixed this morning. I have had plans to move those pieces over to the newer servers, but the problems from yesterday gave it the urgency needed to get that done. The good news is that the mobile site and iPhone apps now use the same infrastructure as the main websites which is more scalable and reliable. Additionally, some of the newer vendors which weren’t available on those platforms are now available as well.
I apologize for the inconvenience caused by those being inaccessible, but they should be working well now along with some other fixes that have been planned as well.