The Treo 650 smart phone by Palm is a hybrid PDA/cellphone that was introduced late in 2004. This device has a 312 MHz Intel X-Scale PXA270 processor, making it almost the equal of a full-sized desktop computer of a decade ago. It supports phone, e-mail, Web access and multimedia applications, including video.

The Treo 650 comes equipped with a 320x320 TFT backlit display, which makes it possible to view photos, web pages and e-mails when outdoors in daylight. Photos are in 16-bit color with a maximum VGA resolution of 0.3 megapixels, and there is a 2X zoom feature built in. Bluetooth capacity is built in for headsets and some other devices, but wireless is not included. You can listen to MP3 music on the Treo, but it requires a memory card, sold separately.

The Treo 650's VersaMail wireless e-mail system is considered one of its strong points. The simple setup wizard allows you to send and receive e-mail from as many as eight IMAP or POP3 accounts. Early versions of the 650 displayed some problems with the 32-bit memory, but that was remedied with a 128-MB digital memory card.

The Treo is available as a dual-band digital CDMA phone or as a GSM quad-band world phone. The directory holds thousands of listings, and entering them is relatively easy with the backlit QWERTY keyboard. The Treo has speakerphone, speed dial, conference calling and caller ID, and an on-screen dial pad. Plenty of programs are included, and there is a wide range of software available for customization.