Voting for a particular matchup begins at 9 a.m. PT the day the game is scheduled.

You'll have a limited time to vote (in most cases, one or two days).

The match will have a scheduled end time; once it ends, voting closes.

To prevent voter fraud, we'll eliminate duplicate votes submitted by readers.

Once the polling for a match closes, the votes will be tabulated, and the phone with a higher percentage of votes will advance to the next round.

Results will be posted the following day (sign up for e-mail alerts and be the first to know which phone won).

In the event of a tie, CNET Wireless editors will have the final word on which phone advances.

We'll also be posting our opinions at the start of each matchup.

At the end of each round, we'll post our favorite user opinions. So fire away with commentary!