Interesting developments from the EVO 4G launch this morning: Sprint is releasing an OTA update to fix a bug in the reading of SD cards on the device, which would sometimes cause the phone to be unable to read anything put into the MicroSD slot. This small fix, however, has the added bonus of patching the root that was discovered and outed yesterday.

UnrEVOked, a person/site that has emerged to promote the root, is urging people NOT to download the OTA update if they mean to keep their root.

And the phone looks to be doing extremely well, judging from all the lineups around the US.