While Palm Pre CDMA is available soon by May or June, a new Palm WebOS is leaked, which will be released for AT&T network in US. Unlike the Palm Pre, the GSM Palm EOS is like the traditional Treo design. It has a QWERTY keyboard below the touch screen but is much slimmer than the Treo smartphone series. According to the source from Engadget, the Palm EOS has a codename Castlen and is actually the successor of the Palm Centro.

The rumor did not mention the availability date. At just 10.6 mm thickness, it will be one of the thinnest smartphone. Check out the prelimary leaked specifications of the Palm EOS below:

• 4GB storage
• 2 megapixel fixed focus camera with flash
• Bluetooth 2.1
• micro USB
• 1150 mAh battery
• SMS, MMS (picture and video only), integrated IM client
• A-GPS

[via mypre]