Nexus One getting Android 2.2 FRF83 update over the air?

The Android 2.2 source code just went public this morning, but we're hearing a fully-compiled, legitimate OTA version of Froyo may be hitting small batches of Nexus One handsets as well. Though a 1.78MB ZIP file floating around XDA-developers this afternoon was originally thought to be the droid we've all been looking for, Android and Me reports that they received an honest-to-goodness OTA version of FRF83 after trying (and failing) to get that ZIP to work, and we're getting several similar reports. Let us know in comments if you've received a frozen treat of your own.

[Thanks to everyone who sent this in]