The tech has a long way to go. You'd need many more qubits to make a fully functional computer, to start with. Penn State's team also wants to improve the reliability (it's at 99.7 percent now) and create quantum entanglements that have particles react to each other. If all those pieces fall into place, though, you could see truly complex quantum computers (not just ones with a few atoms) that pull off calculations which are impractical or impossible for today's machines.