[cheald]

It's surprising to me that those would even differ in the first place. You'd think that you'd have a single deliverable which is delivered and signed, and the installer does the same thing regardless of where it gets the package. What makes OTA different from iTunes?

[selectodude]

The iTunes update is the entire OS patched, so it's like a 2GB download. The OTA update is a delta update, which is only 75MB or so.

[cheald]

Ah, got it!