I thought it was interesting that you didn't compare it to any of the other platforms. For example, you could have talked about Android's contact widgets, which are placeable on the home screen and, when pushed, give you a modal dialogue with options for phone, text, email, etc. Did you avoid talking about other platforms on purpose or have you just not had access?
I didn't quite understand your last point about the slide to unlock. You didn't indicate what exactly you don't like about it, and didn't provide a better a solution or a even a direction toward one. Also, I'm not sure about the similarities to the Win95 start button. Is it just the location on the screen (bottom left)? Is it a visual similarity thing? Maybe this is just something I missed because I'm not in your intended target audience ("design community")?