So if anyone goes to a store and can't figure out if they're looking at a new macbook or an old one, here is how you can tell:
http://docs.info.apple.com/article.html?artnum=306843
I've searched the site and there doesn't appear to be anything like this for the macbook pro. Maybe they don't have the new keyboard updates?
How to visually identify a MacBook (13-inch Late 2007)
The MacBook (13-inch Late 2007) portable computer looks very similar to the previous MacBook computers. Here are a couple of key, visual differences:
Check the keyboard
Look at the computer's keyboard. It should have the new media control keys across the function key row as shown in the Figures 1 and 2 below.
Figure 1 Left side function keys
Figure 2 Right side function keys
Function Key Feature
F1, F2 Decrease or increase the display brightness
F3 Exposé allows quick access to all open windows
F4 Dashboard allows access to widgets
F5, F6 Programmable keys
F7F9 Media controls for rewind, play, or fast forward
F10 Mute the sound coming from the speakers or headphone port
F11, F12 Decrease or increase volume from speakers or headphone port
Check the rear vent
1. Look at the back of the computer with the display closed. You should be able to see the spacing of the vent fins just below the display hinge.
2. Compare the computer's vent to Figures 3 and 4 below. The MacBook (13-inch Late 2007) has much wider spacing between the vent fins than the previous MacBook computers.
Figure 3 MacBook (13-inch Late 2007)
Figure 4 Previous MacBook computers
Where to find the serial number
To find the serial number use the information in this article:
http://docs.info.apple.com/article.html?artnum=303720
http://docs.info.apple.com/article.html?artnum=306843
I've searched the site and there doesn't appear to be anything like this for the macbook pro. Maybe they don't have the new keyboard updates?
How to visually identify a MacBook (13-inch Late 2007)
The MacBook (13-inch Late 2007) portable computer looks very similar to the previous MacBook computers. Here are a couple of key, visual differences:
Check the keyboard
Look at the computer's keyboard. It should have the new media control keys across the function key row as shown in the Figures 1 and 2 below.

Figure 1 Left side function keys

Figure 2 Right side function keys
Function Key Feature
F1, F2 Decrease or increase the display brightness
F3 Exposé allows quick access to all open windows
F4 Dashboard allows access to widgets
F5, F6 Programmable keys
F7F9 Media controls for rewind, play, or fast forward
F10 Mute the sound coming from the speakers or headphone port
F11, F12 Decrease or increase volume from speakers or headphone port
Check the rear vent
1. Look at the back of the computer with the display closed. You should be able to see the spacing of the vent fins just below the display hinge.
2. Compare the computer's vent to Figures 3 and 4 below. The MacBook (13-inch Late 2007) has much wider spacing between the vent fins than the previous MacBook computers.

Figure 3 MacBook (13-inch Late 2007)

Figure 4 Previous MacBook computers
Where to find the serial number
To find the serial number use the information in this article:
http://docs.info.apple.com/article.html?artnum=303720