As John mentioned yesterday, it’s an update that resembles Windows 7’s amazing Taskbar, in that you can get at more windows and files from the Dock itself, currently considered more of an app launcher than an app manager. Here are the new key attributes for Exposé, and how it works within the Dock:

• Exposé itself has a new look: Windows are arranged in a grid rather than in whatever open space is available, and the title of each window appears underneath. (You can see this in the video below, if you pay attention.)

• Stacks, those folder contents that pop up from the Dock, also got tweaked. Most notably, you can scroll to see all the stuff in a stack without clicking the “More” arrow, and folders that appear in stacks can be opened and browsed, too.

• If you click and hold an app icon in the Dock, all the windows open in that app will reveal themselves in the Exposé grid, lined up neatly. Using some key command or cursor gesture (which I don’t know), you can even zoom in to one of the open windows, and check it out without leaving Exposé.

• If you grab a file, you can drag it to the dock and hold it over an app icon. This springs open App, and arranges the open windows of that app in Exposé, so you can easily drop the file where it needs to go. (I currently do this by holding the file with my mouse while doing a combo-keystroke to bring the window back into view, so I can see how this will make life easier.)

[Apple's Snow Leopard "Refinements"; Snow Leopard Full Coverage on Gizmodo]

He can use Exposé and Application Switcher just like the newer models, and suspects all later-model MacBooks could also work. Macrumors warns that this is absolutely not recommended for the casual user, and could have awful results you and I can’t even guess at, but it’s definitely an impressive trick. Makes you wonder why Apple couldn’t have just updated all of the older machines via a firmware upgrade, doesn’t it? [Macrumors]

First, let’s revisit what we already know. Not only does the Miami Chamber of Commerce and BBB not know anything about any company named Psystar (confirmed by reader Travis through his contacts in the chamber), the actual physical address they listed on their website actually changed halfway through the day yesterday. What’s going on here? Did they all of a sudden move from a home business into a new office space? Nope. Here’s the deal.

Reader Michael went down to their first location, address courtesy of the Guardian’s quick fingers, and saw that it was indeed a residential address. It’s a one story house with a truck and sedan out front. Not a business, but still holds the possibility of being a small home business. Still, unlikely. Why would they change their address? Perhaps they saw all the reaction they were getting about their Open Mac products and wanted a bigger space?

Nope. Reader Kahri visited their second location and saw no Psystar, but a packing supply company called “USA KOEN PACK.” Was Psystar leasing the place? No. He spoke with the manager, and they’ve never heard of Psystar, and USA KOEN PACK has been at that location for the last two years. KOEN PACK actually takes up from 10481 to 10490, so there’s no chance of it being a mistaken address. Update: Looks like Psystar’s changed their address once again to 10471.

Now that we know their storefront isn’t actually there, how about their online presence? As other readers pointed out when they tried to purchase an Open Mac for themselves, at no point was the credit card transaction secure. Today, when you visit their store page, you get this:

Thank you for visiting Psystar. We’re sorry but the store is temporarily down due to the fact that we are currently unable to process any credit card transactions. Please send an e-mail to support@psystar.com with the subject line “UPDATE” so that we can update you when the store comes back online. For customers who have already placed orders: if you received a confirmation e-mail then your item is in queue to be built and shipped.

Here’s our recommendation. Don’t buy anything from Psystar now until we can clear this up. We’ve contacted them for more information and a review unit to see if everything they’re claiming is real. So far, no response. We’ll keep at it, but for now if you’re looking to get a Mac clone, you’re better off building it yourself.

Thanks to Kahri, Mike and Travis!

Update: Reader Robert did some more digging in the Florida Corporate filing office, and it seems that Psystar’s principles are Rodolfo and Roberto Pedraza, who are officers or agents on a whole crapload of companies. Only one of these companies besides Psystar is currently active: Floridatek. As Robert says, “These guys are obviously clowns.”

Update 2: Someone just brought up the point that he could actually work at USA KOEN PACK and is just using his workplace as an address. Interesting possibility, but somewhat unlikely.

Update 3: Ha! It looks like Psystar changed their address again. Here are their first two: image. Their third one is below.

The Mac in question is a 2.2GHz MBP with an undisclosed amount of RAM installed. The user, Flickr member burnflare92, stated no slowdown was detected at all. I find that a little hard to believe, as mine lags a bit with a mere 20-plus apps running, even if it is a 2.16Ghz, 2GB RAM MBP. What do you guys reckon: is zero lag with 150 apps running total BS? [Flickr]