Razib Khan at Discover's Gene Expression blog says there is "a chicken-and-egg problem with personal genomics." More specifically, until sequencing personal genomes becomes ubiquitous and the process transparent, he says they will be somewhat of a "letdown in terms of what it can, or can't, tell us." At the same time, he adds, "as long as there’s a letdown, it won’t become ubiquitous and transparent." So, which will come first? Time will tell, Khan says.