Fits of inspiration are usually inopportune -- like when you realized eight years too late that it might've been wise to invest in Google. The same goes for that panicked impulse that strikes somewhere between rocking out to the last dregs of a song as it spills out of the radio and the time it takes for you to locate your phone, unlock it and launch Shazam. Well, for those of you slow on the draw, the company's making its music identification service a whole lot quicker. Now, iPhone and iPod touch users can track down artist info from music or TV in a literal second, courtesy of a software refresh. It's all part of a 5.0 update, available now, for the outfit's trio of apps -- F