Queen is my all time numero uno band. There have been many pretenders to take over Freddie Mercury. The fans do not need someone to sound exactly like him but rather take what Freddie Mercury represents and collectively make the Queen sound again. You can never mistake a Queen sounding record, it has more to do with Brian May's guitar works, Roger Taylor's drumming and John Deacon's bass lines. Even though Deacon won't be joining the tour, the sound stays quite intact.
I must say from the videos, Adam Lambert is probably a fantastic fit for Queen, his theatrical presentation, flamboyance, solid vocal skills ... seems just about right to be fronting Queen. I guess I might have to start booking for a trip to OZ land in August, I mean Brian May and Roger Taylor are in their 60s already. Come to think of it, there are not many bands/artistes whose songs I can recite by heart (and I mean nearly all of them).