This is Microsoft's new browser. If you use Firefox you may notice some similarities like tabbed browsing and the search function in the upper right hand corner that allows surfers to search with various engines right from the browser's tool bar.
Most of the functionality appears to be copied from Firefox right down to control+T to open a new tab. Microsoft wasn't even the second to market with this. AOL has a tabbed browser that comes with my AOL IM (BTW if anyone knows how to disable that browser with out affecting IM please let me know).
Perhaps there is yet another browser with the tab feature.
Are there other things that Microsoft is not first to market with? Probably. This anecdote makes it reasonable to question the company's ability to innovate. This is one of many reasons why I don't have any interest in owning the stock beyond its weight in any tech ETF.