For the first time ever, flash player release for Linux has been released along with the other two major platforms, windows and mac.
Am using a Ubuntu install on my macbookpro these days, so am thrilled to have the latest player on my machine on the same day as my windows and mac colleagues :P
Official press release is here.
You can get the latest flashplayer installed here
I hear that, Adobe AIR release with the latest Flash player capabilities, is coming very soon as well :)
Flash player 10 adds a lot of new expressiveness features - You'll start seeing apps built with those features once Flash CS4 goes out in the wild (looks like buyers can already download it. Trial versions must be coming, very very soon). The demos here will give you a good idea of some of the new features, so check it out after your installation is complete.
Oh, and on a side note, Silverlight2.0 was released a couple of days ago as well, but I can't install. There is no linux version, much like their previous version. I checked the system requirements page, and was confused at the silverlight plugin listed being not available for Safari on windows. Why?!
And when the page shows "unsupported platform" it also shows a "click to install" button below that. Which keeps refreshing the page. -_-