There has been lots of speculation for a while on when the new apple software/hardware.

The latest speculation is around iLife. There is some guessing that it will come out later this summer or even in September. If they are going to wait until September, they might as well wait until October to do a big release with Leopard. In regards to Leopard, it is very slick. A friend of mine has a pre-release copy form WWDC and I got to play with it. rock on! Although there are many sites out there with details of the new MacOSX, I signed a NDA a while back and dont want to piss off uncle jobs and get sued. So you can see the details from them. I will say that almost everything I read from respectable sites is spot on in the details.