Didiom has just released new software for Windows Mobile users that lets you stream your PC’s music collection over the internet to your phone. The software, which works with both Windows Mobile and Blackberry, lets you stream MP3 tracks stored on your computer to over 200 phone models, for free. In addition to streaming, Didiom offers a marketplace where you can shop for music from a selection of over 1 million songs, also available in MP3 format. What’s different about their service is that it lets you name your own price when purchasing the songs. After buying, tracks can be downloaded to both phone and PC. You can also share music previews with friends, either via email or from cell phone to cell phone. There are no extra fees to use Didiom – the service is completely free (at least for now)…but make sure you have a data plan with your wireless carrier before using.