Palm accidentally leaked information about its new handset, Plam Treo 850, also called Treo Pro on its website. It is thought to be the best looking set from Palm and would operate on Windows Mobile instead of Palm’s long-awaited Nova operating system.

The leak, which happened in the form of flash presentation on the company’s website revealed that the set will be slimmer than its initial ancestors and would run on Windows Mobile 6.1 over 3G.

However, the set’s looks are quite familiar to one of the Palm’s initial models, the Centro. The latest set will have glossy black and white color scheme with exclusive features like a 3.5mm headphone jack, wireless button on the side and a microUSB connector.

The new handset will use MicroSD cards for memory expansion. There are still some more exciting features related to the new handset like 2.4-inch 320X320 pixels touchscreen display, 400MHz processing speed and 100MB of RAM. You can even click pictures through its 2 mega pixel camera situated at the backside of the phone.

Though the launch date of the set has not been announced, it is expected to hit the markets soon. There have been further reports which say that Palm has placed 5 million-unit order for 2009 with the Asian mobile phone manufactures, Compal Communications.