If you're going to try to beat Google at its own game, you need three things: good design, quick results, and an impressive algorithm. Izik, a new iPad-only browser from relatively unknown search start-up Blekko, performs so remarkably well in all three categories that Google might want to take notice. I was skeptical at first. Every now and again, some indie search engine threatens to knock Google off of its pedestal, only to crumble under the weight of lofty expectations. But Izik is the closest thing to a Google replacement I have ever used.