I have the cingular 8525 which is the HTC TyTN, the new HTC Kaiser is coming soon so I will be upgrading to that, I love the TyTN and if you want something you can type on that has all the bells and whistles thats the way to go:
Mine has 3g on cingular, I connect my laptop through the phone when no wifi is available and its pretty fast, enough to stream youtube stuff straight on my laptop when its tethered to the phone.
Specs:
HTC TyTN II P4550 (HTC Kaiser 120) Specs
Datasheet Views: 294124 views since upload of datasheet (February 28, 2007)
Datasheet State: Preliminary specifications
Release Date: September, 2007
Predecessor Model: HTC TyTN P4500
Dimensions: 59 x 112 x 19 millimetres
Mass: 190 grams (battery included)
Software Environment
Operating System: Windows Mobile 6 Professional AKU 0.2.2
Microprocessor
CPU: 32bit Qualcomm MSM7200 Chipset
CPU Clock: 384 MHz
Memory, Storage capacity
ROM capacity: 256 MB (accessible: 145.24MB)
RAM capacity: 128 MB
Hard Disk capacity: Not supported
Display
Display Type: color transflective TFT , 65536 scales
Display Resolution: 240 x 320
Display Diagonal: 2.8 "
Sound
Microphone: mono
Speaker: mono
Audio Output: Proprietary jack
Cellular Phone
Cellular Networks: GSM850, GSM900, GSM1800, GSM1900, UMTS850, UMTS1900, UMTS2100
Cellular Data Link: CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA
Call Alert: 72 -chord melody
Vibrating Alert: Supported
Control Peripherals
Positioning Device: Touchscreen
Primary Keyboard: Slide-out QWERTY-type keyboard, 41 keys
Directional Pad: 5 -way block
Jog / Scroll Wheel: Pressable rotary scroll wheel
Interfaces
Expansion Slots: microSD, microSDHC, TransFlash, SDIO
Serial: RS-232 , 115200bit/s
USB: USB 2.0 client, 480Mbit/s , USB Series Mini-B (mini-USB) connector
Infrared Gate: Not supported
Bluetooth: Bluetooth 2.0
Wireless LAN: 802.11b, 802.11g
Multimedia Telecommunication
Analog TV: Not supported
Analog Radio: Not supported
Satellite Navigation
Built-in GPS: NMEA 0183 , 20 channels
Built-in Digital Camera
Main Camera: CMOS sensor, 2.8MP
Autofocus (AF): Supported
Built-in Flash: Not supported
Secondary Camera: CMOS sensor, 640x480 pixel
Power Supply
Battery: Lithium-ion , removable
Battery Capacity: 1350 mAh