AT&T is introducing four new mobile phones, two each from Pantech and Samsung that feature full Web browsers as well as physical and virtual keyboards. 

The Pantech Reveal and Impact will join the Samsung Mythic and Flight at the head of AT&T’s quick messaging and touch-screen phone portfolio heading into the holidays.

The new phones are the first to come pre-loaded with AT&T’s new HTML mobile browser and att.net service. AT&T says the new att.net mobile platform uses advanced data compression from Opera Software, allowing for faster delivery of HTML Web pages.

The Pantech Reveal hits shelves Oct. 18 and comes in red and blue. The Reveal features an open-faced numeric keypad on the front of the phone, which slides up to uncover a full keyboard underneath.

The Pantech Impact features an OLED touch screen that lets users send text messages, make calls and control their music library without having to open the phone. Impact’s screen features haptic controls that register each key press with a soft, tactile buzz. A sideways flip of the phone reveals a full physical keyboard and a second display screen.

A touch screen-only device, the AT&T Mobile TV-capable Samsung Mythic will be  available in November for $199.99 after $50 mail-in-rebate. The 3.3-inch touch screen scrolls left to right on the home screen for additional applications that are accessible with a touch of a finger.

The Samsung Flight is a next-generation messaging device from Samsung that has a vertical sliding form factor, with full keyboard underneath. The main display features a unique user interface that provides one-touch access to functions like shortcuts, favorites and messaging.  The Flight will be available in November for $99.99 after a $50mail-in-rebate and two-year agreement.