Thunderbolt has been largely theoretical so far, but with the first peripherals lining up for release in the near future, this Ars Technica article is a particularly interesting read. It claims that, at least at first, Thunderbolt peripherals won’t ship with the necessary cables, and users will have to buy Thunderbolt cables from Apple for $49 for a 2 meter cable. At some point, other manufacturers will undoubtedly start manufacturing Thunderbolt cables, which will likely drive the price down, but it’s unclear how long that will take. follow link
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.
Initial Thunderbolt Cables to Cost $49 from Apple