LG also pushes out firmware 7.10.7740.16 to fix email issue with Exchange 2003 and voicemail notification problem. It has been sometime LG has an update available for the Optimus 7. The new firmware will include the Internet Sharing tethering feature on previous firmware (which was not pushed out) as the firmware will include all the previous incremental updates.

Update : Internet Sharing feature is still unavailable on the Optimus 7.