Let me clarify my 100mb comment. I didnt mean it constantly stays above 100mb, but when I end all apps except the three I always have running,(weather widgets, launcher++, battry life), I'm well over 100mb. Interesting that you never get over 60, but thats not low enough to cause any slow down, so its fine. Anything under 20MB and the phone begins to forget animations etc. I don't have it down to an exact science!lol..An app can use more or less memory at any given time, so noway can I say I'm over 100MB all the time, but I do know I'm over 100 before I begin any task. And thanks to Advanced task manager its effortless. Makes my experience smooth.
From day 1 people have unfairly criticized Android for being "a little laggy", but never check whats running. My thinking is why would you let the media player use memory if youre not listening to it? Or Bluetooth, calendar, or any app you're not using? No thanks. Android may be capable but Its your job to keep it efficient. This isn't news. The G1 taught us how to use Android and even with the Droid's extra RAM, which makes it more flexible, its still the same concept. If you return to a blank home screen and have to wait on icons to appear or have inconsistent transitions then low memory is the usually cause. Every movement should be almost instant.