Arriving a week later than many had expected, Apple on Tuesday unveiled the MacBook, intended to replace both the iBook line and 12-inch PowerBook. The release completes Apple's laptop transition to Intel processors.

The MacBook comes with an Intel Core Duo processor running at either 1.83 GHz or 2.0 GHz and 13-inch widescreen display. With the update to Intel processors, Apple said the new models are up to five times faster than their predecessors.

Like the MacBook Pros, the entry-level portables will also include a built-in iSight video camera and Front Row with Apple Remote. Also included are DVI output with dual display support, a sudden motion sensor to protect the hard drive, and a TrackPad and MagSafe Power Adapter.

Built-in Ethernet and Wireless-G networking will also be included, along with Bluetooth capability. Each unit will also ship with one Firewire 400 and 2 USB 2.0 ports as well.

"The complete MacBook lineup leads the industry with Apple's trademark innovative design and advanced mobile features -- from top to bottom it is the best notebook line that we have ever offered," Apple senior marketing vice president Philip Schiller said in a statement.

Apple will also offer the customer a choice of either black or white casing, much like it did for the iPod. The MacBook is also some 20 percent thinner than the iBook at a thickness of about one inch.

The 1.83GHz MacBook model will retail for $1,099 USD, while the 2.0GHz model would retail for $1,299 USD. Apple said that with the MacBook's release, the speeds of the MacBook Pros would be increased as well. The $2,499 USD model will ship with a 2.16 GHz processor, up from 2.0 GHz, and the $1,999 USD model now includes a 2.0 GHz processor, up from 1.83 GHz.

All new MacBooks will begin shipping immediately from both Apple's online store and its retail locations, as well as through its authorized resellers.