Shortly after the update of the 17″ MacBook Pro at this year’s Macworld and news that it will contain a longer life, non user replaceable battery, Apple has published a support article that can help users when the time to replace their battery comes. According to details from this article, the replacement price will be $179 if the battery is out of its one year warranty period. When it comes time to actually replace the battery, it can surprisingly be done in one day at an Apple store if you schedule an appointment. If you choose to send it in, it will take 3-4 business days after your shipment.

The Unofficial Apple Weblog has revived an old rumor for this year’s Macworld as, according to them, a trusted source has informed them that an AT&T tethering plan may be announced this year. Although they point out that this announcement may not make the actual keynote (by Phil, of course), it may be announced via a simple press release.

Asian sources for the 9to5Mac site have informed the company that Apple may announce a 17 inch screen Macbook Pro this year at Macworld that would be manufactured using the new unibody design. Although this in and of itself isn’t all that interesting, the sources are also stating that the battery in these devices may not be removable. It’s almost as if Apple hasn’t learned anything from the iPhone battery outcries. Although 9to5Mac states Apple may be using some new silver zinc battery technology to make up for this, I still think people will be mad unless these batteries are extremely powerful and long lasting.

In what appears to be complete speculation, the UK technology news website named ElectricPig has written an article over at their site about the MacBook Nano that Apple will supposedly be announcing at Macworld on Tuesday. According to them, this machine would not only kick the competing netbooks’ behinds when it comes to power, but would also be ultra sleek by “stripping away the features that clog up other ultra-portables” such as “connectors for external monitors, wired network connections and even abandon hardware support for headphones and a microphone.”