Microsoft is getting back in the game with its new line of Windows phones. Some phones have already been launched in Europe and other countries, but today is the first day that you can purchase your very own Windows Phone 7.

Microsoft’s new phone operating system is very streamlined and easy to use, and some iPhone users might be seriously considering switching to the Windows phone.

The Microsoft Online Store just released its first run phones:

  • HTC HD7 (T-Mobile)
  • HTC Surround (AT&T)
  • Samsung Focus (AT&T)
  • Venue Pro
  • LG Quantum

Amazon Wireless looks to be offering phones as low as $99 when you purchase from it. And Dell looks to be promoting $150 on the Dell Mobility store for its own Venue Pro phone. Lastly, The LG Quantum phone is up for pre-order with Amazon.