Nokia N900 (photos)

The Nokia N900 is the next evolution of the company's Internet Tablet line. It's available now unlocked for $549.

New features of the N900 include phone capabilities, the Linux-based Maemo platform, and a mobile Web browser based on Mozilla technology.

The N900 is also smaller than previous models, such as the Nokia N810 Internet Tablet, at 4.37 inches long by 2.35 inches tall by 0.77 inch thick and weighs 6.38 ounces. However, it's still on the bulkier, heavier side so it won't make the most comfortable fit in a pants pocket.

One of the N900's cons is that the user interface is very unintuitive. Though you can customize up to four home- screen panes with different shortcuts and widgets, it's not always clear what each icon does or how to open various menus. Also, there are no dedicated navigation controls, such as Talk and End keys or a back button, so simple tasks like making a call requires extra steps.

You do get a full QWERTY keyboard, which you can access by sliding the screen up. There isn't much spacing between the keys but we found the buttons to be a good size so we didn't have too much trouble using it. Our biggest complaint is that the space bar is located off center, which interrupts the flow of typing.

On the right side of the phone, you'll find a lock switch, a 3.5mm headphone jack, and the stylus. There's also a kickstand on back that allows you to prop the N900 on a flat surface and watch movies or view a slideshow hands free.

Like many of Nokia N series models, the N900 features a 5-megapixel camera with a Carl Zeiss Vario-Tessar lens, dual-LED flash, auto focus, and video recording capabilities.

The N900's camera delivered on photo quality. This shot was taken in a dimly lit room, and we were impressed at the sharpness and colors of the image.

The Nokia N900 offers plenty of memory. Aside from 32GB of internal storage, the smartphone is equipped with a microSD expansion slot that can accept up to 16GB cards.