NerdBerry just posted that some users world wide are receiving a small update to OS 10.0.10.99. There is no change log as of yet. Being only 37mb, it can’t be too much besides maybe some performance enhancements. If you received the update, and notice some difference, please let us know if the comments section.
UPDATE: looks like this has been out for some other carriers for a week or so, BerryMe.de