Shiira 2.0 got officially released today. My opinion is that it's still quite buggy but it has loads of cool features and is definitely shaping up as a great WebKit-using Safari competitor. Give it a spin.
A gallery recently posted by Think Secret gives us good insight into the kind of changes Apple is making in Leopard. You should visit the linked page and see the entire gallery for yourself, but the two screenshots above encompass the salient changes.
First of all, most noticeably, Apple is changing the colour of the menu bar to the greyishness you find currently in all the iLife '06 apps. Although I don't find this particularly attractive, particularly because it's become the background colour for the toolbars also, I can see why they might have done it - so that it's easier for the eye to distinguish between the two distinct parts of the window - the content area and the title bar. Because, after all, the title bar is used to move the window around and it's the only part of the window that can do so. Secondly, Apple is simplifying a lot of common applications even further as can be seen by the new super-simplified Software Update application.
Personally, I can't wait for WWDC and to be able to get my hands on a Developers' Beta of Leopard.
The Leopard DelayA lot of people have already said a lot about this. I'm disappointed that Apple missed the Spring deadline. I anticipated that they'd release latest by June using Spring's official definition, but I seriously wasn't expecting October. I am disappointed that Apple puts the iPhone that much above Mac OS X that Mac OS X can take a backseat while the iPhone is finished. I am also disappointed that Apple cannot manage to make two great products simultaneously, but instead needs to pause one to complete the other. It's almost childish for a company of Apple's stature. Still, a beta will be distributed to developers at WWDC and since it will be leaked into the torrents in short order, we will still get to see what Apple has been working on since last August. Also, I am definitely in favour of waiting until October rather than Apple cutting back on some neat features that they wanted to include. I also don't want another release like Mac OS 10.3 where the initial 10.3.0 OS had an extremely serious bug that erased data off external hard drives. Yes, would rather that didn't happen.