Microsoft may have its own phone business now, but that doesnt mean that other companies cant still produce Windows Phone handsets under their own flags. Redmonds China VP Zhang Yongli has announced that both Chinas K-Touch and Floridas Blu Products have signed up to produce mobile devices using Microsofts operating system. Given that both companies skew towards the cheaper end of the market, we can expect a slew of low end devices hitting the market later in the year.