Oct 12, 2010 10:46 GMT  ·  By

On Monday, Redmond-based software giant Microsoft unveiled officially the first mobile phones that would arrive on shelves with its new Windows Phone 7 operating system on board, and various wireless carriers around the world already started to announce info on their WP7 offerings.

From a total number of nine Windows Phone 7 devices that were said to land on shelves during the ongoing year, four are expected to arrive on the Australian market, including the HTC 7 Trophy, the LG Optimus 7Q, Samsung Omnia 7, and HTC 7 Mozart.

We already reported on the upcoming availability of HTC 7 Trophy via wireless carrier Vodafone in the country, which will most probably launch the device on October 21st, and now we should take a look at other offerings in the area.

For example, both HTC 7 Mozart and LG Optimus 7Q are expected to land at Telstra in the following weeks, for free on the carrier's monthly plans.

The HTC 7 Mozart should land on October 21st on the $49, or higher, Cap Plan (minimum cost over 24 months $1176), via all Telstra Shops and dealers.

The LG Optimus 7Q is expected to arrive in November on Telstra’s new $129 Cap Plan (unlimited standard national calls, SMS, MMS AND 3GB of data per month – on a 24 months contract - minimum cost $3096).

LG Optimus 7Q will be available for Telstra Business customers on the $79 Telstra Business Mobile Cap Plan, as well as on a range of Telstra Enterprise & Government plans, the wireless carrier announced.

We should also note that Telstra is expected to exclusively launch the high-end HTC HD7 on its airwaves in early 2011, but specific info on this lacks at the moment.

A LG Optimus 7 device is expected to land on the shelves at Optus, along with the Samsung Omnia 7, both for free on a $79 Optus Cap plan for end users, while coupled with a $79 Business Complete Ultimate plan for the enterprise users (24 month contracts).

“With Windows Phone 7 we have redesigned the smartphone. The focus is on people and what we do every day – the friends we connect with, the games we play and the way we interact with each other – making every-day tasks easier and faster,” said Tracey Fellows, managing director, Microsoft Australia.

Additional info on the new mobile OS and on the handsets powered by it can be found on Microsoft's website here.