Looks different and something I would want to grab and use. But honestly, Windows Phone layout is just boring. After I used it for a few times, I wouldn't want to pick it back up.
It's not just a grid of apps, there is much more possible on the Android home.
On my Evo I never made nearly as much use of widgets because adding them to the start screen was a different process from adding apps to the start screen, and not integrated into the apps themselves in the same way as far as I remember.
The other start screen thing I like about WP is that I hardly ever used the stuff on anything but my main, front-and-central home screen on my Evo. I usually just glanced at the home and then shut it off without swiping left or right to my alternate desktops, unless I wanted to launch an app on one of them. The WP "just swipe down to scroll through all the tiles" idea is really convenient for helping to remember everything you pin there.
To me, that's a plus, because most of the stuff I do on my iPhone is rather boring. My usage revolves around the core apps, none of which is very exciting.
If Nokia can keep innovating on the camera front, they might have me switching on my next upgrade cycle.
I used a loaner WP7 phone for a month when abroad and when I came back to my iPhone I actually felt a longing for the WP. It was like iOS felt bulky, old and cluttered in comparison.