Another note: Safari did not prompt me to import bookmarks from another browser. Thought that was an interesting omission.
It's slick. Not extraordinarily pretty, but Safari 4 does attempt to break up the monotony that is Windows with an updated interface that isn't a complete Mac knockoff like Safari's previous iteration (those who skin their PCs like Macs will be disappointed). I use the classic theme on Windows XP, and you can see in the screenshots that there is an attempt to bring current styling trends to older visuals.
One thing about the menu elements at the top -- the bookmarks start on by default, but I don't like to give screen real estate to that, so I turned it off. Google Chrome handles this problem by inserting your "pinned" bookmarks into the home page, in a bar-style format, just below the menus. Safari handles this problem slightly differently: instead of recreating the bookmarks bar, it allows you to "pin" (via the edit button on the bottom left of the page) certain visual links.
Another thing about the tabs: the "close" box is on the left side of each tab, not the right -- the location that other browsers usually put the favicon. I'm not against re-doing the formula for browser layout, but if you're transitioning from another browser or use another browser on a regular basis, the switch will wreak minor havoc on your productivity.
What's also interesting is how Safari deals with too many tabs. In this case, it gives you an ellipses and drop-down menu:
Finally, about those tabs: you can't just drag a tab out of the main window, like Chrome, from any point on the tab. You must grab it by the little three-line corner (which is hard to do quickly on a high-resolution, large display, I should add) and drag it out from there. I'm a big proponent of not playing target practice with regard to layout and design, and I fear the narrow tabs and menu elements might be a little harder to use.
Full-screen mode is solid. Since the top menu and title bar are narrow as it is, you get a nice amount of screen real estate to browse with. On the other hand...
...unlike Google Chrome, the status bar isn't a "pop-in" -- that is, it doesn't show up only when you need it, and instead is the old-style approach: on, or off. Safari installs with the status bar off by default (interesting decision, especially with regard to security), but for that reason I like to keep it on. On the other hand, the bar is very narrow and uses very small type, so it does make concessions for keeping it on all the time.
The good news is the address bar takes all the good cues from Chrome, and provides a very useful autocomplete menu:
Finally: the download manager remains outside the main browser window, like Firefox 3, and is not integrated into the bottom like Chrome.
Here's how Safari handles the integrated RSS button (when applicable) in the address bar, by the way:
For the moment, each browser retains its unique differentiating qualities, though: Chrome is still the most barebones and experimental of the bunch, Internet Explorer is still extremely integrated with Microsoft services, Firefox still retains its mod-happy plugins, multi-use bar and "Save and Quit" tab memory.
No longer chained by the Mac look, Safari 4 beta is somewhere in between, at least on a PC.
(Safari 4 beta on top of Google Chrome; note the interface differences)
Of course, these are just first impressions -- not the final judgment, especially for a browser that adapts to your browsing habits over time.
What do you think of Apple Safari 4 beta? [download]