For me (in Germany), the first hit when Googling
which is talking about October 28 without mentioning a year (probably from 2009), while the actual 2011 DevDays are taking place in November.
Also, the London venue is marked as "Sold out" on that site, like many others, while for the 2011 DevDays, that doesn't seem to be the case yet.
Those pages need to be taken down. Although I dig their design! They look really cool. I'd like to see that design back for the 2012 DevDays!