It seems that Microsoft is desperately trying to get the lead in the search market. Yesterday Microsoft has released a small software for windows PC called Bing Desktop which automatically downloads the Bing homepage wallpaper and then applies it to your desktop. So your desktop wallpaper automatically changes everyday without your intervention. Seems a very nice idea right. Syncing with the Bing homepage wallpaper as a bait may be Microsoft wants to increase its search traffic. With this Bing Desktop a small search bar runs on your system in background which becomes active on pressing Win + H keys. So you can enter your query without opening any browser and the results for the query are displayed in your default browser. If you are Bing fan then you can also change settings such that the bar is active all the time and can use it more frequently.Here is how my desktop looks after installing this Bing Desktop.
Download Bing Desktop.