Microsoft also fell into the trend-chasing trap before Google. It's a very fine line, though. Excel was probably trend-chasing at its time, but they were doing so many things at once back then that going head-to-head with Lotus 1-2-3 wasn't a bad idea to throw in there. Whereas stuff like Windows Phone or Zune seemed like major strategic shifts dictated from the top, not just "oh let's make one of those too".