They typically try to re-review or amend their reivews when things get released/updated. The problem with waiting is: at what point do you stop waiting? Partic

They typically try to re-review or amend their reivews when things get released/updated. The problem with waiting is: at what point do you stop waiting? Particularly when the vast majority of the time these release dates are pure speculation. If Google releases theirs next month, then word leaks that Amazon has one releasing shortly, should they then wait for that, too? And on and on ad infinitum? I'm sure that at any given moment in time there is _some_ company that is working on a competing product. I'd argue they are absolutely doing the right thing by reviewing what is available regardless of what is on the horizon, otherwise they'd be giving preference to whoever they are waiting on (Google in this case).