MacBook touch Concept
(I was all set to start a new thread, but then I saw this one so I thought I'd throw my hat into the ring.

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When I saw the iPhone for the first time I knew I was going to get one and I was certain I would love it. Sure enough, from the first day I started using it, the iPhone has met every expectation and made me far more productive in the process. Still, the incredible potential held in the multi-touch interface has so far been locked into small devices and kept segmented from the Mac OS. For fun, and as a way to solidify my thoughts, I decided to try to make a mockup design for a MacBook touch tablet computer. The basic goal was to imagine a device that ran regular, off-the-shelf Mac software but also took advantage of the multi-touch interface. That meant merging the different design philosophies of the iPhone and the MacBook.
What I was looking for was a device that was smaller than the MacBook, and probably not as fast, but that had a large touch screen like the iPhone. Early on I decided that a slate tablet would be perfect. I don't want something so large that the MacBook becomes a competitor, so I settled on something about the dimensions of the iPhone, but three times as wide (about 4.3" x 7.5" x 0.46", ~14.5 oz.). As a guide, I want something in about the same proportions as a Moleskine notebook, but a bit smaller. At 170ppi, the 8.6" screen would have a resolution of 1280x720 (16:9, HD720). Considering how easy it is to read text on the iPhone screen, the MacBook touch should be an amazing eBook/PDF/webpage reader. If LED backlights can boost battery life, that's even better. I see it having a matte finish aluminum back, smooth rounded edges (both like the iPhone), a matte black aluminum front edge (like the iPod touch), and a glass front face.
Since this is equal parts MacBook and iPhone, the device will need some I/O ports, but since it is an ultraportable there won't be many. Obviously there won't be an optical drive, nor will there be a keyboard. I think I could get by with one firewire and two USB, mic in, headphone out, a mini-DVI plug and an ExpressCard34 (and a MagSafe power connector). As one might guess, the MacBook touch would have a complete set of wireless available (802.11a/b/g/n, Bluetooth, IR). To keep the front face smooth, the speakers would be placed on the bottom edge, like on the iPhone. Keeping in line with all other MacBooks and the iMac, the MacBook touch would have to have a camera of some sort. Since the device can be used in either portrait or landscape, putting the camera in the middle of one side isn't practical, so a corner placement would be preferred.
It would be nice if the MacBook touch could dock with a full-size Mac like an iPhone, so you could sync your work. I see the MacBook touch as a secondary device, not as a primary computer. To accommodate this one could either put an iPod Dock Connector on the bottom of the device or introduce some sort of new Dock port on it. Once you establish that the MacBook touch will dock with your home Mac, you open up the possibility that there could be a docking station that includes an optical drive and a bunch of extra ports. Apple could even provide two dock options, a basic one if you're just linking it up to your main machine, or a full docking station if you want to use the device as you primary machine.
I'm not sure what price would be appropriate, since in order to make the thing small Apple would have to use fairly cutting edge hardware inside. This is the perfect candidate for a solid-state hard drive, since then the device would have no moving parts. For my personal use, 40-60GB would be ideal. Larger is probably better, since there would be no way to upgrade the drive after purchase. With that in mind, there is then the issue of the battery. All of Apple's small devices have non-removeable batteries in order to keep the bodies rigid and keep the sizes down. Those goals certainly apply to a device like the MacBook touch, which would lead me to believe that Apple would keep the battery locked in place. This would be a departure for a MacBook, but not one I'll be overly upset about.
The final hurdle would be the software. A 170ppi screen would mean that applications would have to embrace resolution independence in order for their apps to be usable. As a computer, the device would not be the most powerful, so intensive apps and games might now be available at all. Also, developers seeking to optimize their apps for the small screen and touch interface might not want to have a third platform to develop for (the Mac and the iPhone being the first two). To prevent the formation of a third platform, the MacBook touch should be able to run all iPhone/iPod touch apps natively. If Universal binaries can work on PowerPC and Intel, then they can work on ARM as well. These "touch" apps could live on the system in one of several ways: on the Dashboard (since they look like widgets anyway), on a separate Space (Spaces would be key to usability on the MacBook touch anyway, so why not a special "touch" Space), or side-by-side with full Mac apps on the main desktop (perhaps in HUD windows to visually separate them and give them a "close window" button on the top). I like the HUD idea best, but having three iPhone apps running side by side on a dedicated Space is also appealing.
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