I have sites that run for years without me editing a single line of code or any other sort of maintainance. Backups run automatically, so do regular clean-ups of the database and certain directories.
What sort of maintainance would you say a largely client-side application like iGoogle does require?
Edit: anybody care to explain the random downvoting?
Re. random downvoting, it happens on tablets. Chill, somebody else will be along shortly to vote the comment up out of the gray.
Plugins: Just drop the external sources that change their APIs.
Accounts: Accounts are managed by Google Accounts, not by individual apps.
iGoogle is mainly a client-side script that displays small amounts of data. Still think there is not much "maintaining" to do.
1 developer, 75% time. That's it. If they are north of 2 developers they are doing something very wrong.