It's probably in Google's interests to make better tracking available to everyone. But I think trying to avoid script blocking by using other means is only going to trigger a filtering arms race.
I don't mean Google App Engine, no. I'm not sure where you're getting that from, unless App Engine lets me upload my Apache logs into my Analytics account where GA will match up IP addresses to page views and whatnot... ? Not sure how it could since I'm not using App Engine for anything, even so I've googled around a bit for 'google app engine analytics' and I'm not finding any results about doing this for App Engine hosted sites either.