Apple has posted and removed a PDF repair guide for its new MacBook and MacBook Pro, launching this month. The PDF guide contained instructions for qualified technicians to replace the display in “Late 2008″ MacBook and MacBook Pro notebooks.

Notice how we didn't use terms such as “probably,” or “likely,” when referring to the launch date of the new laptops. Given last week's news, Apple's new devices have totally been confirmed. With a PDF document on the new notebooks from Apple itself, the company will have some explaining announcing to do come October 14. Those lucky enough to catch a glimpse of the document could confirm that it offers no specific details on the new notebooks. Nevertheless, it does confirm their existence, which means Apple's Town Hall event will indeed see their official introduction to the market.

The document also confirms that Apple is not making any radical changes, except perhaps for upgrades to the optical drive (Blu-ray?), chipset and casing, hence the MacBook / MacBook Pro (Late 2008) dubbing.

Two days from now, Apple will be showcasing its first laptops whose cases are hollowed out of a single piece of aluminum, sources suggest. The new laptops aim to be greener, but also cheaper to manufacture, although not everyone believes the process is less costly. Other obvious advantages are that such casings will prove to be much more resistant, holding the pieces together much better as well. Eliminating a considerable amount of screws, holes and niches is also seen as a huge advantage, although the end user might not be targeted here.

It's reasonable to believe Apple's “one more thing” may include an upgrade to the company's thinnest portable computing solution, the MacBook Air. This is possible since the current model lacks a user-replaceable battery, while EU's directive for restricting hazardous substances (RoHS) is asking companies like Apple to make it easy for the consumers to replace their own device’s battery.