The Pantech dual slider C810, is now listed on Amazon page. Although it seems like they are selling it at $180 with service plan, the phone will be only shipped within 2 - 4 weeks. The Pantech C810 is the first AT&T phone that slides out vertically like a slider phone, and also horizontally like a PDA/Smartphone.

Source [Amazon]

Pantech C810 - Cell Phone Highlights

• Dual-slider Design Is First Ever For AT&T
• Access AT&T Video, AT&T Music and The Internet All At Near-broadband Speed
• Smart Design Tucks The QWERTY Keyboard Safely Away When Not In Use
• A 2 Megapixel Camera/Camcorder To Capture The Moment
• Stream Stereo Music Over Bluetooth With Built-in MP3 Player
• Intergrated Inbox Collects Your Emails, Instant Messages and Text Messages
• Huge Color Display
• GPS Receiver Built-in With Location Services Like Google Maps
• AT&T Video Share-capable! Send or Receive Video While Talking On The Phone!
• Video Share-capable! Send or Receive Video During Your Voice Calls!

Pantech C810 – What's In The Box With The Cell Phone

• Additional Items Included - Battery, Wall Charger, USB Cable, CD-ROM w/ Software, User Guide

Pantech C810 – Cell Phone Advanced Features

• Digital Camera - Yes,
• 2 Megapixels (1600 x 1200 Pixel Resolution Max), Flash
• MP3 Player - Yes, MP3, WMA, AAC Formats Supported, Playlists, Album Art, USB Mass Storage
• Bluetooth Wireless Technology - Yes, v1.2 Handsfree, Headset and DUN, OPP, HID Profiles Supported
• Two-handed Gaming Experience - Yes
• Video Capture / Camcorder - Yes, H.263 and MPEG4 Formats, Video Sharing (1-way Video Send/Receive During Calls)
• QWERTY Keyboard - Yes, Slideout Style,
• Backlit Infrared Port - Yes
• Voice-driven Menus - Yes, Train The Phone To Pull Up Over A Dozen Applications With Your Voice
• Data Capable / Use This Phone As A Modem - Yes, Software and USB Cable Included, Broadband Speeds
• Bluetooth Stereo Headset (A2DP) - Yes, A2DP and AVRC Profiles Supported So You Can Stream Stereo Music To Compatible Bluetooth Devices
• PC Synchronization - Yes, Software and USB Cable Included, Or Sync Over-the-air With Microsoft ActiveSync

Pantech C810 – Cell Phone Messaging Features

• Mobile Web Browsing - Yes, Full HTML Browser Built-in, Near Broadband Data Surfing
• Multimedia Messaging - Yes, Take and Receive Picture and Video Messages, Integrated Inbox
• Text Messaging (SMS) - Yes, Send To Groups Or Individuals, Integrated Inbox
• Instant Messenger Built-in - Yes, AOL, Yahoo! and MSN Live Messenger Built-in, Integrated Inbox
• Email Client - Yes, Supports AOL, Yahoo!, Hotmail and POP/IMAP Protocols, Integrated Inbox

Pantech C810 – Cell Phone Personalization and Fun Features

• Polyphonic Ringtones - Yes, Plus Downloadable
• Custom Ringtones - Yes
• MP3 Ringtones - Yes
• Ringer Profiles - Yes
• Picture Caller ID - Yes
• Multiple Languages - Yes
• Games - Yes,
• Downloadable Customizable Graphics - Yes, Downloadable

Pantech C810 – Cell Phone Core Features

• Color Main Display - 320 x 240 Pixels, Over 65,000 Colors, Rotates To Landscape When Keyboard Is Exposed, Flip-up Tilt
• Voice-activated Dialing - Yes, Record Voice Tags For Phone Book Entries
• TTY Compatible - Yes
• To-Do List - Yes
• Voice Memo - Yes
• Style - PDA Standard 2.5mm Headset Jack - Yes, Stereo Headset Included
• Alarm - Yes
• Calculator - Yes
• Calendar - MS Outlook Calendar, Sync Over-the-air or via Bluetooth or USB Cable, Supports Meeting Requests
• Mini-USB Port - Yes, With USB Cable Included
• Vibrate - Yes
• Phonebook Capacity - Shared Memory
• Multiple Numbers Per Name - Yes, Including Email, Instant Messenger and Web Addresses

Pantech C810 – Cell Phone Technical Specifications

• Application Platform - Java
• Network Compatibility - GSM 850, 900, 1800, 1900
• Data Download Speed - HSDPA (Avg 700 Kbps), EDGE (Up to 144 Kbps)
• Ringtone Types Supported - MIDI, MP3, AMR, AAC, WAV, WMA
• Built-In Memory - 128 MB
• Expandable Memory Capacity - Yes, nicroSD/TransFlash Card Format Compatible
• Dimensions - 4.3 in x 2.3 in x 0.9 in