T-Mobile today announces a major addition to its Office in your Pocket range of devices with the world's first 2.5G, 3G and Wi-Fi MDA, the latest BlackBerry 7100t as well a doubling of the number of its Wi-Fi HotSpots by the end of 2005. New devices and services come with new, simpler and better value tariffs.

According to René Obermann, CEO of T-Mobile said: “One in five European workers are already mobile - meaning they spend significant time travelling and out of the office. That's over 33 million workers, and its increasing fast. What they need is their office when they're out of their office. And that's what we're doing, literally putting your Office in your Pocket. T-Mobile's range of devices today genuinely allows you to do that.”

T-Mobile also confirmed the launch of the MDA IV announced by Microsoft at the beginning of the month with more details on the new PDA device. The device, which is 100 cm2 is like a mini laptop that fits into a pocket - and includes a 520 Mhz Intel processor and the Windows Mobile operating system.

The MDA IV is also a triband terminal, operating on GSM 900, 1800 and 1900 networks. SMS, MMS and e-mails can be typed using the full qwerty keyboard. The 640 x 480 pixel colour touch screen is ideal to display text, images and internet pages. Additional functions include two integrated video and still cameras, and loudspeakers. Once open, the screen can be turned round to turn the mini-laptop into a PDA with a touch-screen.

Like other MDA models, the MDA IV includes full Office functionality (e-mail push-service, Word, Excel, PowerPoint, Outlook), integrated video and music players and equipped with USB and Bluetooth interfaces for synchronization of data with a PC.

The device will be available from this Summer in Germany, and will follow in other markets.

T-Mobile also announced its own version of the Blackberry 7100t while promising to double its wifi hotspots around the globe.