Microsoft warned us last month that it would be snipping legacy OS support in Windows Phone Marketplace within a few weeks, and it just made good on that heads-up. As of now, you'll need at least a Windows Phone 7.5 device to shop for, review and update apps, no matter how much you want that fix for Ilo Milo. The company still argues that the cutoff is needed to improve speed and security in the Marketplace as well as lay a foundation for a better Windows Phone future. Given that virtually every handset on the market can get 7.5 today, if it doesn't already ship with 7.5 preloaded, you have every good reason to grab the update through Microsoft's desktop apps and stay in the Marketplace downloading parade.
Microsoft Windows Phone 7.5
Microsoft Zune HD