Since battery life was specifically stated to be concern in the original post, I'd think the extended time required to get a pure GPS fix vs the near instantaneous time using A-GPS wiuld make that dependent enough that using pure GPS would be inconvenient at best and useless at worst.

I know its tough, but I'd really like to see you post something constructive ocassionally yourself instead of just nitpicking other poster's comments.

There are some applications available to address that iPhone shortcoming - why don't you try listing a few?