As other have pointed out, there are a lot of conferences on this year. There's no way that anyone could attend all of then - well except acme I guess.
There were two that I wanted to go to. OSCON and YAPC::Europe, but I've just seen the dates for YAPC::Europe and it's only a couple of weeks after OSCON. We're already planning to make OSCON a long holiday where we can catch up with a few friends in various parts of the US, so adding on the extra time off to go to Paris as well will probably will be unworkable. Our finances are still reeling from all the time I was out of work last year so I really can't afford to take six weeks off this summer.
So it looks like, for the second year running, I won't be able to get to YAPC::Europe. That's a real shame.