You would think that Windows Phone 7 was the perfect platform for Microsoft to do the hard sell for its Bing search engine. Well it is, but someone has left the back door open, with Google now sneaking in to offer an alternative search.According to TechRadar, the Google Search app for Windows Phone 7 has just hit Microsoft's marketplace for Windows Phone 7, should you feel more comfortable with it for your searching needs. It's only fair - you can get rival searches on Google's Android platform after all.'Searching with Google on your Windows Phone 7 device just got easier,' claims Jon Skeet and Nick Radicevic of the Google Mobile Team. 'The Google Search app for Windows Phone 7 provides quick and convenient access to a rich set of search results, allowing you to search the web, images, local, news, and more.'This initial release of the Google Search app includes several features that help you to search faster - suggestions appear automatically as you type, you can choose to repeat a query from your search history, and your current location is used to provide more relevant results.'If that appeals and you've joined the Microsoft smartphone revolution, head over to that marketplace for Windows Phone 7 now.