It's painful and really not constructive via this venue. kindle2-feedback [at] amazon.com is the way to suggest and argue for enhancement. If you have looked at things that users ask for from Kindle 1, many improvements have been made on the Kindle 2 front. Amazon has been a customer focus company for a long time, the brand is built around that. Customer feedbacks does matter in Amazon world.
The screensaver feature in Kindle 1 isn't on the official list to start with... It's likely that the devs who put it in got in enough trouble already... That's why I have been encouraging users to go through official channel to suggest to Amazon that custom screensaver is a feature they would really want and enhance users' experience. That way, users get what they want and customers can get the proper official support when its needed. Devs are rarely at odds with the users because they want to delight the users as well.