My iPad2 did wifi my phone is doing it right now on 3GCan be installed through software updates under settings. Download is 133mb so make sure your connected to wireless!
For OTA, Just go into settings, check for software updates and when it finds the update, tap in download. You'll get an EULA, just tap ok and that's it. The software will download and will update. It's reboots itself.How are these updates applied? Do you download the update and reboot?