The BlackBerry Z10, BlackBerry’s latest push to become relavent, has proven to be a minor hit in some markets. It’s true test, however, will come when it launches in the U.S. this month. Those hoping for an early March release won’t be too pleased though as the Z10 will reportedly hit later in the month.

Bloomberg reports that the BlackBerry Z10 will go on sale in the U.S. on March 22 at AT&T. The carrier won’t comment on the rumored launch date, and BlackBerry is remaining silent on its U.S. launch plans. All the other carriers planning to carry the Z10 aren’t saying anything either.

We can assume that the BlackBerry Z10 is still on track to launch in the U.S. in March, but the company’s silence doesn’t inspire confidence. We’re already almost a quarter through the month and we don’t have any new details on the BlackBerry Z10’s U.S. launch. You would think that BlackBerry would want to announce a release date as soon as possible and begin advertising the launch, but that hasn’t happened yet.

As Bloomberg points out, the U.S. market has to wait longer for phones as testing periods at carriers take longer than in other countries. It could be that the Z10 hit a snag in testing at one of the carriers and it pushed the launch back for everyone. The March 22 launch date could be when everybody is launching, or it could be saying that AT&T will have completed its testing before everybody else.

Even if the Z10 launches on March 22, it may be too late. Samsung will be showing off the Galaxy S IV next week, and that alone may be enough to kill any chance BlackBerry had of catching a significant part of the U.S. market again.