You know they do make Android powered phones in many different sizes. My Atrix for example, has a 4" screen but is not much bigger than the iPhone 4.I do agree on the size of the phones though, it's the one thing that keeps me away from Android is the size of the 'phones'.
Here's what they look like side by side.
http://phone-size.com/?s=1,99
There are a lot of choices out there.