Put unprecedented power in the palm of your hand with the impressive T-Mobile MDAsmartphone. It's amazingly small, it runs Windows Mobile 5.0, it's got Bluetooth and Wi-Fi, it supports EDGE high speed data, and it's a quad-band phone. In a word, this thing is loaded. With all the tools you need to stay connected and organized -- plus a few things to help you have fun -- the SDA is the perfect choice The SDA lets you do things you'd typically need a PC to do, like email, text messaging, instant messaging and web browsing-- all from one integrated phone. What's more, the phone's software is designed to sync seamlessly with email, contacts and calendar information on your PC. The SDA also offers great mobile music and video options, thanks to Windows Media Player. Design The SDA sports a 240 x 320 screen -- extremely high resolution when you consider the screen measures just 2.2 inches diagonally. Below the screen, the SDA's controls maximize available space on the small unit. Contextual menu select keys are arrayed just below the display, while a row of media control keys are placed just above a five-way selection button that allows you to navigate and control the Windows Mobile interface. A mini-SD memory expansion card slot is provided, and the rear of the phone sports a 1.3 megapixel camera with video capture capability. The power key and an infrared port are housed on the top of the unit, while a universal charger/data port and headphone jack are on the bottom. A mini-USB port is also provided for wired data transfers. Calling Features The SDA has all the latest calling features folks have come to expect from a high-end handset. The built-in speakerphone makes it easy to talk without having the phone to your ear. Voice activated dialing makes calling your friends, family and associates as easy as saying their names. The phone's Bluetooth connectivity means that your favorite Bluetooth headset is fully compatible. And a ringer and picture ID system makes it easy to identify your most common callers. Like all T-Mobile phones, the SDA also supports voicemail, caller ID, conference calling, call forwarding, call waiting, call hold, built-in paging, and access to T-Mobile's 411 service. Messaging, Internet and Tools The SDA is designed as a complete solution for people who want to bring their office with them. The unit comes packed with mobile versions of Outlook, Internet Explorer and MSN Messenger. Outlook Mobile features integrated calendar and email functions, as well as a contacts list that is cleverly integrated with the phone's dialing functions. Robust SMS and MMS functionality is built into the Windows Mobile interface, too. Microsoft's ActiveSync software keeps the device synced with all of your PC's Outlook information (via Bluetooth, USB, or IR connection).