AT&T is now offfering the Quickfire, the final of four new quick messaging mobile phones designed to make messaging faster for textaholics.

The Quickfire is slider phone with a1.3 megapixel camera and full QWERTY keypad, 3G world access and with fast downloaded music via Napster. Quickfire also features AT&T Navigator, which provides turn-by-turn directions and is available with a 30-day free trial

All quick messaging phones are compatible with AT&T's messaging plans that offer 200, 1,500 and unlimited messaging for $5, $15 and $20, respectively. AT&T FamilyTalk plan customers can get unlimited messaging for all lines for $30.

The AT&T Quickfire, which comes in orange, lime and silver, is available through AT&T retail locations or at http://www.att.com/wireless for $99.99 after a two-year agreement and mail-in rebate.

Reviews have been positive and Wirefly is offering it for free to new AT&T customers.