EQO Mobile for Skype is now available for the Palm TREO 650, as well as the Motorola ROKR, SLVR and RAZR. The software is currently in beta, and requires you to have your PC running and connected to Skype.

Via EngadgetMobile.

From the news release:

EQO Communications, a leading developer of presence-enabled calling and instant messaging solutions and services, today announced immediate availability of EQO Mobile for Skype™ on the Palm TREO 650 and Motorola ROKR, SLVR, and RAZR handsets.

With this announcement, made at the CTIA Wireless 2006 conference, EQO brings the number of EQO-supported handset models to more than 45, including some of the most popular devices from Nokia, Motorola, Palm, and Sony-Ericsson.

According to estimates, more than 3.3 million TREO devices have been sold worldwide since its launch in the Spring of 2004. The RAZR is presently the most popular phone handset in the world, selling briskly since its launch in late 2005. Motorola’s RAZR has a 6.1% share and 6.2% share of sales in the US and European mobile phone handset markets, respectively, according to research firm Telephia.

“We’ve built a platform and a solution that is both flexible and adaptable,” said Colin Quon, Founder and CTO of EQO. “This enables us to respond quickly to customer demand in expanding support for new and popular phone models as they hit the streets.”

Using a combination of a phone-resident J2ME client and a presence-enabled Voice-over-IP (VoIP) signaling network, the EQO Mobile Internet Phone Service is able to bridge online identity, VoIP calling, and Instant Messaging services to more than 200 million J2ME-capable mobile phone handsets already in use worldwide. With more than 74 million registered users, Skype™ is the dominant player in Internet calling and Instant Messaging communications services worldwide.

While the company is working with Skype™ to improve this solution, EQO has built the foundation to extend presence-enabled voice and instant messaging to mobile devices in partnership with other high-profile online communities, instant messaging networks, and wireless carriers.

“Skype™ is just the tip of the iceberg for EQO,” said Ian Andrew Bell, EQO Vice President of Marketing & Alliances. “The hundreds of millions of people associated with online social networks like MySpace and Match.com can enjoy enormous benefit from accessing these communities through wireless devices. We have the technology to deliver it to them.”

EQO Mobile for Skype™ lets users make and receive calls, send Instant Messages, and view presence information about their buddies over the Skype™ network. It is available for free to consumers as a Beta product via the EQO (pronounced “echo”) web site at www.eqo.com.