I was quite surprised that Motorola followed suit of that from Nokia,re: the Nokia 6280, where they are SLIDE Phones. They launched the Motorola Z3 which basicly looks like the Ultra Thin Razor , but with the slide out feature.

Compared to the Motorola KRZR K1 , it is almost similar to their precessor the Razor, Vx (loved the pink one), I would really buy them if they have 3G in it.

OK, since some people want to know what I really think, lets see what I liked…IN BOLD
The K3 FULL SPECS:

Data Features

Bluetooth® connectivity: Integrated Bluetooth® wireless technology connectivity for hands-free convenience
WAP 2.0 for internet access (network dependent feature)
GPRS: Class 12
Connectivity: Bluetooth® wireless technology
USB Connection Port: version 1.1 / full speed of 12 Mbps max
PC Synchronisation

Performance Features
Talk time: 400 mins
Bands: GSM 850/900/1800/1900
Standby time: 350 hrs

Lifestyle Features
Calculator
Alarm
Bluetooth® Technology: Integrated Bluetooth® wireless technology for hands-free connectivity with compatible Bluetooth®-enabled devices

Messaging Features
OTA Provisioning
EMS & MMS Messaging
SMS
E-Mail: POP3/IMAP embedded
Instant Messaging: Embedded - WVIM

Call Management Features
Phonebook: Multi-letter phone book search

Personalisation/Fun Features
Video Download and Streaming
Slim profile: Thin, narrow slider with a multi-modal design
2 mega-pixel camera
MOTOSYNCâ„¢
Audio Player: support AAC, AAC+, AAC+ Enhanced, AMR NB, MP3
Video capture and playback: capture / playback rate of 15-20 fps / supports MPEG4 and H.263
Integrated MP3 Player

Technical Specifications
Weight: approx. 115 g
Removable Memory: up to 2GB of removable storage with an optional MicroSD memory card
Internal Memory: 16MB
Dimensions (H x W x D): 45.50 x 105.47 x 15.99 mm
Internal Display: 176 x 220 mm, 1.9” 262K colors TFT
Battery: 780.00 mAh
Volume: 69cc

This is in comparison with the KRZR Full Technical Specs

Data Features
EDGE for high speed data exchange (EDGE is a service dependant feature): EDGE Class 12
Connectivity: Bluetooth wireless technology
Bluetooth® connectivity
GPRS: GPRS Class 12 (2U/4D)

Performance Features
Standard Battery: 780 mAh Li-Ion
Talk time: up to approximately 200 – 400 minutes
Bands: GSM 850/900/1800/1900
Standby time: up to approximately 200 – 350 hours

Lifestyle Features
Bluetooth® Technology: Integrated Stereo Bluetooth wireless technology connectivity for hands-free convenience
PIM functionality: with Picture Caller ID

Messaging Features
Enhanced phonebook: with new contact fields: URL, IM, Postal Address, Birthday, and other information
Voice memo: enhanced predictive text and enhanced voice recognition for easy, hands-free connectivity
OTA Provisioning

Call Management Features
Picture caller ID: or ringer caller ID (network depended feature)
Picture Phone Book: network depended feature
In-built Hands-free Speaker Phone

Personalisation/Fun Features
Video Download: progressive download
MOTOSYNCâ„¢
Push-To-View
Video Streaming: Audio/video streaming (3GPP)
Video: Premium video capabilities, video capture & playback MPEG4 (15 fps CIF). Record up to 25 minutes of video on embedded memory
Polyphonic Ringtones
Slim profile: ultra-slim form factor
MicroSD slot : for optional upgradeable memory up to 2G
Hi-quality imaging via 2MP digital camera : with 8x digital zoom, and image editing

Technical Specifications
Internal Display: 176 x 220 mm, 1.9” 262K colors TFT
Form Factor : Clamshell
Volume: 63cc
Weight: 103g
External Display: 96 x 80mm , 1.0” 65K colors CSTN CLI
FOTA: Firmware over the Air
Dimensions (H x W x D) - CP: 1.65 x 4.05 x 0.63 inches; 42 x 103 x 16 mm

I just feel, both are the same, except the form factor, one is a slide, and the other, a clamshell.

But looks great!

Post Edit:
While both are excellent, I will sure want a slide phone, cos I had enough of Motorola and their clamshell. They invented the clamshell, so I should know, with the MicroTAC as the first generation of cell phones ever came out, on PCS, PCN, GSM, PHS and Analog.

In view of the specs, the 3GP protocol is viewable by QuickTime and RealMedia. The clarity is superb and though they use MicroSD, which is cheap *(I just got a 1GB last nite for RM80!) and since SD card reader is integrated into alot of systems, its a plus point!

The color itself is a real plus point for the phones, but only , and only if, the put in the 3G video capacity. But then, I read somewhere you can do Video Streaming thru the GPRS or whichever.

Anyway, If I get it…I sure love it.