Is there any way to change default search engine from Bing to Google?
I do not have any problem with Bing in general, but the search results for Bing are not localised for our country.
Google does have localised search results.
The idea behind this is that Microsoft owns Bing. They want to make Bing a part of their complete Microsoft experience, so they include it in Windows Phone 7, XBox Live and Messenger.
If you go to google.com (and actually make sure you are on the American Google) there on should be a link on the page to pin it to your Start menu. It actually looks good. There's also the Google Search app in Marketplace. As far as changing the default, you change the default search engine in Internet Explorer by going to Settings, but the only other option is Yahoo!