Sprint and Kyocera this morning confirmed that the
dual-screen Echo

read our full review

-- is getting its
Android 2.3 Gingerbread

update. On top of the OS bump, it's getting an update to
Swype 3.0,

as well as a new "Eco mode" to help out on battery life -- something the Echo desperately needs. (Remember that it actually comes with two batteries and a spare charger.)
Something the update doesn't bring, contrary to earlier reports, is some hidden NFC capability. No great surprise there -- if the Echo had an NFC chip in it, we would have heard about it by now.
But don't let that cast a dark cloud over this update. If you've got an Echo, look for the over-the-air-update to start pushing right ... about ... Now!