Although it varies from model to model, input is generally through a QWERTY keypad or a touchscreen and stylus combo, either of which allows you to effortlessly write or type messages. Business users are usually attracted to push email capabilities of PDA-phones, where new inbox messages are transferred directly to the mobile device. To set up push e-mail, a Microsoft Exchange or BlackBerry Enterprise Server is usually required, although personal and other third-party solutions are available through network carriers.
The latest PDA-phones hitting the market support the now ubiquitous connectivity threesome of High Speed Downlink Packet Access (HSDPA) and Wi-Fi for data transmission and an onboard GPS receiver for use with pre-installed mapping software, like Google Maps.
While PDA-phones can't compete with the processing power of a desktop PC, a high-speed connection combined with a zippy processor can keep workers productive when they're on the road — editing Office documents, catching up on email, taking photos on-site and sending them back to the office, watching a movie, etc.

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Nokia E71

Mobile professionals who need a powerful but sleek messaging-centric smartphone will be well-served by the Nokia E71; just be prepared to pay a price.

Editor's rating:9.5 User rating:8.8

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