The O2 XDA Zest offers the following features:
* Microsoft Windows Mobile 6.1 Professional
* SMS, MMS, Email, Instant Messaging
* WAP 2.0/xHTML, HTML
* 3.15 MP, 2048×1536 pixels, autofocus, video
* secondary VGA videocall camera
* Built-in GPS with A-GPS
* SiRF star III chipset
* Pocket Office (Word, Excel, PowerPoint, OneNote, PDF viewer)
* Java MIDP 2.0
* 2.8″ TFT touchscreen display, [...]

The O2 XDA Orbit 2 offers the following features:
* GPS
* Microsoft Windows Mobile 6.0.
* 3 megapixel camera
* video capture
* FM radio
* MP3 player
* 2.8” touch screen
* stylus and 360 degree track wheel

The O2 XDA Atmos offers the following features:
* slide out QWERTY keyboard
* full 3G capabilities
* 2.4″ color TFT, QVGA (240×320 pixel) resolution
* 2 megapixel camera
* 256MB built-in storage
* microSD card slot
* can record QVGA resolution videos

The O2 Xda Stat is O2 Germany’s version of the HTC Touch Dual and it offers the following features:
* Windows Mobile 6 Professional
* 20-key QWERTZ keypad
* triband GSM/GPRS/EDGE and singleband UMTS/HSDPA up to 3.6 Mbps
* Qualcomm MSM7200 chip at 400 MHz
* 2.6″ QVGA flat touch screen
* 2 megapixel camera plus front facing camera for video [...]

The 02 XDA Comet offers the following features:
* Windows Mobile 6 Professional version of the Xda Atom Life
* QVGA (only) touch screen
* Marvell XScale PXA 270 CPU at 624 MHz
* 1 GB of ROM
* 2 megapixel camera with macro focus
* addtional front facing camera for UMTS video telephony
* FM radio
Source.

Powered by Windows Mobile® 5.0 platform and featuring Microsoft® direct-push email, the Xda Argon provides quick reliable internet access and familiar easy-to-use Microsoft Office applications, making it the ideal tool for busy mobile professionals.
Looking for a great price on the unlocked O2 XDA Argon and related accessories? Check below for great deals on O2 XDA [...]

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Listings at eBay US: (prices are in US currency)
New [...]

The O2 Xda terra, based on the HTC Herald, offers the following features:
* Windows Mobile 6
* semi slide-out QWERTY keyboard
* quadband GSM / GPRS / EDGE
* 2 megapixel camera
Source.

The O2 Xda nova offers the following features:
* Windows Mobile 6
* TI OMAP CPU, 200 MHz
* quadband GSM / GPRS / EDGE
* 128 MB ROM
* 64 MB RAM
* microSD memory card expansion
* 2.8-inch display, 65k colors
* 2 meagpixel camera
* Bluoetooth 2.0
* W-LAN b/g
Source.

The O2 Xda Zinc Pocket PC offers the following features:
* messaging PDA phone
* slide-out QWERTY keyboard
* 2.8-inch 65k color TFT LCD display
* Microsoft Windows Mobile 5.0
* Intel Xscale PXA 270 processor, 520MHz
* Intel Hermon chip
* 3G
* direct push technology for e-mail
* Bluetooth SIG v. 2.0
* wireless LAN 802.11b/g
Via the unwired.

O2 XDA Orbit Reviews
IT Reviews has a review of the O2 XDA Orbit and writes, “you can’t listen to the radio while charging the XDA Orbit (two leads won’t fit into a single mini USB port), and you can’t easily substitute a different headset. … There are some great things about the XDA Orbit, though. [...]

The O2 Graphite offers the following features:
* Intel Xscale PXA 270 Processor at 416 MHz
* Intel Harmon chip
* 128 MB Flash ROM memory
* Windows Mobile 5.0
* direct push technology
* Microsoft Office programs for Windows Mobile
* Wireless LAN 802.11b/g
* Bluetooth SIG v. 2.0
* 2.2-inch 65k color TFT LCD screen
* 2.0 megapixel camera, strobe flash
Source: the unwired.
Technorati [...]

The 02 Xda Stealth offers the following features:
* Windows Mobile 5.0 Pocket PC Phone Edition
* 802.11g WiFi
* triband GSM (900/1800/1900)
* Windows Media Player 10
* 2.4-inch 320 x 240 display
* 2 megapixel camera with flash and video capture
* speakerphone
* 192MB flash ROM
* 64MB RAM
* miniSD memory expansion slot
Via CNET.

The O2 XDA Atom Exec will be launching soon in Asia. It runs Windows Mobile 5.0 OS, including the Messaging and Security Feature Pack upgrade, which will give users push email capabilities.
Features include:
* 520MHz Intel processor
* 192MB ROM
* 2.0 megapixel camera
* matte finish
* dimensions: 102 x 58 x 18.5mm
* weight: 140g
Via CNET Asia.
O2 XDA [...]

The O2 Xda Trion (HTC Hermes) offers the following features:
* Samsung ARM CPU, 400MHz
* quad-band GSM/GPRS/EDGE
* UMTS
* 2.0 megapixel camera with photo light
* QCIF camera for video telephony
* Windows Mobile 5.0, including AKU 2
* A2DP Bluetooth stereo
* Bluetooth 2.0
* W-LAN/WiFi g
* 128MB ROM
* 64MB RAM
* microSD memory card expansion
Via theunwired.
O2 Xda Trion Reviews
the::unwired has a [...]

The O2 XDA IQ smartphone runs Windows Mobile 5, and sports a 200MHxz Texas Instruments OMAP 850 processor. Other features include:
* 64MB SDRAM
* 64 MB ROM
* quad-band (850/900/1800/1900MHz) GSM/GPRS radio
* EDGE
* Bluetooth 1.2
* Wi-Fi connectivity: 802.11b
* weight: 110g
* dimensions: 10.9 x 4.7 x 1.9cm
The device comes with a 1150mAh battery, giving up to four hours [...]