You heard from one source that the OS was still laggy. A source which was testing a phone which had been manhandled by multiple people at a large event. A phone which probably isn't even a final unit. And somehow managed to label it as a disappointment. If that's not convincing then I don't know what is.
Like I said, I'm a recent convert over to iOS, and while I think it's definitely more polished, I still have experienced stutters and lag with it. As much as I have on various Android phones I've owned. That's to say nothing of troubleshooting bunches of customer's iPhones that were slow or lagging. It's going to happen. Smooth is going to be a matter of opinion. My Nexus One was one of the smoothest phone's I've ever owned and in my personal opinion held it's own against my current 4S. That's to say nothing of the various customization I could do with it that I can't with my 4S.
I really could care less about the fanboy thing as I never called you one. I don't really care what you buy. I do however question the logic of someone calling someone a fanboy when he/she is making some grand proclamation on a message board about how "Google has lost you forever!!11!!" because of lag on a phone you haven't even demoed yourself.
This is about the worst argument I've ever heard. I'm about to demolish everything you said in a few short words.
1. This was sure as hell the final, or EXTREMELY near final unit. This thing is allegedly launching around 11/10, and there is no way Google is going to radically change anything to solve this lag.
2. GOOGLE THEMSELVES said that the reason you can't actually 'close' apps but rather remove them from the 'active apps' card stack was because they said the user doesn't need to be able to do that, nor should they need to! (talk about restricting, eh?) Google is making the very bold claim that their multitasking doesn't need to involve closing applications, so it shouldn't matter if ever app on the device had been used- they say it's ready for it.
3. This phone (Galaxy Nexus) has 1GB of RAM for god's sake! How on earth can it lag and have multitasking issues? The iPhone 4S doesn't have this problem (last night I opened all stock apps and about 10-15 downloaded apps and tried using the phone and experienced no lag as if only one application was open) and it's a phone with a processor clocked 400Mhz lower, with half the RAM!