If you somehow managed to make it through the Kyocera Echo event without firmly deciding what your next Sprint phone would be, you're going to want to set your alarms for this coming Thursday, February 24th. Sprint's just dropped a quick teaser on Twitter that asks its followers what they "think the next new Sprint phone will be," ending with a hashtag suggesting they check back in three days -- no hint whatsoever as to what kind of handset it could be. Clearly, Sprint's nearing the point when an upgraded EVO 4G would be nice, but with the lack of carrier exclusivity, the CDMA iPhone would make a nice fit, too. Any other guesses out there?

[Thanks to everyone who sent this in]